1970740 has 24 divisors (see below), whose sum is σ = 4167072. Its totient is φ = 782880.

The previous prime is 1970729. The next prime is 1970743. The reversal of 1970740 is 470791.

It is a super-2 number, since 2×1970740² = 7767632295200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1970699 and 1970708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3987 + ... + 4453.

It is an arithmetic number, because the mean of its divisors is an integer number (173628).

2^1970740 is an apocalyptic number.

1970740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1970740 is an abundant number, since it is smaller than the sum of its proper divisors (2196332).

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

1970740 is a wasteful number, since it uses less digits than its factorization.

1970740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 1970740 is about 1403.8304740958. The cubic root of 1970740 is about 125.3746625684.

The spelling of 1970740 in words is "one million, nine hundred seventy thousand, seven hundred forty".