1976940 has 96 divisors (see below), whose sum is σ = 7042560. Its totient is φ = 451008.

The previous prime is 1976939. The next prime is 1976941. The reversal of 1976940 is 496791.

It is an interprime number because it is at equal distance from previous prime (1976939) and next prime (1976941).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1976895 and 1976904.

It is not an unprimeable number, because it can be changed into a prime (1976941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3519 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (73360).

2^1976940 is an apocalyptic number.

1976940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1976940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3521280).

1976940 is an abundant number, since it is smaller than the sum of its proper divisors (5065620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1976940 is a wasteful number, since it uses less digits than its factorization.

1976940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1976940 is about 1406.0369838664. The cubic root of 1976940 is about 125.5060022632.

It can be divided in two parts, 1976 and 940, that added together give a square (2916 = 54²).

The spelling of 1976940 in words is "one million, nine hundred seventy-six thousand, nine hundred forty".