3970040 has 16 divisors (see below), whose sum is σ = 8932680. Its totient is φ = 1588000.

The previous prime is 3970039. The next prime is 3970049. The reversal of 3970040 is 400793.

It is a super-2 number, since 2×3970040² = 31522435203200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3969988 and 3970015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49586 + ... + 49665.

Almost surely, 2^3970040 is an apocalyptic number.

It is an amenable number.

3970040 is an abundant number, since it is smaller than the sum of its proper divisors (4962640).

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

3970040 is a wasteful number, since it uses less digits than its factorization.

3970040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99262 (or 99258 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 3970040 is about 1992.4959222041. The cubic root of 3970040 is about 158.3427904477.

The spelling of 3970040 in words is "three million, nine hundred seventy thousand, forty".