4090256920 has 32 divisors (see below), whose sum is σ = 9687452400. Its totient is φ = 1549991808.

The previous prime is 4090256917. The next prime is 4090256923. The reversal of 4090256920 is 296520904.

It is an interprime number because it is at equal distance from previous prime (4090256917) and next prime (4090256923).

It is a self number, because there is not a number n which added to its sum of digits gives 4090256920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090256923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2690199 + ... + 2691718.

Almost surely, 2^4090256920 is an apocalyptic number.

4090256920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4090256920 is an abundant number, since it is smaller than the sum of its proper divisors (5597195480).

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

4090256920 is a wasteful number, since it uses less digits than its factorization.

4090256920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381947 (or 5381943 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 4090256920 is about 63955.1164489597. The cubic root of 4090256920 is about 1599.2518533524.

The spelling of 4090256920 in words is "four billion, ninety million, two hundred fifty-six thousand, nine hundred twenty".