3556490 has 48 divisors (see below), whose sum is σ = 7800192. Its totient is φ = 1141536.

The previous prime is 3556489. The next prime is 3556493. The reversal of 3556490 is 946553.

It is a happy number.

It is a super-2 number, since 2×3556490² = 25297242240200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3556493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75647 + ... + 75693.

It is an arithmetic number, because the mean of its divisors is an integer number (162504).

Almost surely, 2^3556490 is an apocalyptic number.

3556490 is an abundant number, since it is smaller than the sum of its proper divisors (4243702).

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

3556490 is a wasteful number, since it uses less digits than its factorization.

3556490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 3556490 is about 1885.8658488875. The cubic root of 3556490 is about 152.6419354009.

The spelling of 3556490 in words is "three million, five hundred fifty-six thousand, four hundred ninety".