4256690 has 16 divisors (see below), whose sum is σ = 7715520. Its totient is φ = 1690800.

The previous prime is 4256671. The next prime is 4256701. The reversal of 4256690 is 966524.

It is a super-2 number, since 2×4256690² = 36238819512200, which contains 22 as substring.

It is an unprimeable number.

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, 101 + ... + 2919.

It is an arithmetic number, because the mean of its divisors is an integer number (482220).

Almost surely, 2^4256690 is an apocalyptic number.

4256690 is a deficient number, since it is larger than the sum of its proper divisors (3458830).

4256690 is a wasteful number, since it uses less digits than its factorization.

4256690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 4256690 is about 2063.1747381160. The cubic root of 4256690 is about 162.0655376754.

The spelling of 4256690 in words is "four million, two hundred fifty-six thousand, six hundred ninety".