1947040 has 48 divisors (see below), whose sum is σ = 4723488. Its totient is φ = 758016.

The previous prime is 1946999. The next prime is 1947041. The reversal of 1947040 is 407491.

It is a junction number, because it is equal to n+sod(n) for n = 1946996 and 1947014.

It is not an unprimeable number, because it can be changed into a prime (1947041) 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 7 ways as a sum of consecutive naturals, for example, 6739 + ... + 7021.

It is an arithmetic number, because the mean of its divisors is an integer number (98406).

2^1947040 is an apocalyptic number.

1947040 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 1947040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2361744).

1947040 is an abundant number, since it is smaller than the sum of its proper divisors (2776448).

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

1947040 is a wasteful number, since it uses less digits than its factorization.

1947040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1947040 is about 1395.3637518583. The cubic root of 1947040 is about 124.8700516208.

The spelling of 1947040 in words is "one million, nine hundred forty-seven thousand, forty".