56090340 has 96 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 14860800.

The previous prime is 56090311. The next prime is 56090351. The reversal of 56090340 is 4309065.

It is a happy number.

It is a super-2 number, since 2×56090340² = 6292252482631200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 129925 + ... + 130355.

It is an arithmetic number, because the mean of its divisors is an integer number (1829520).

Almost surely, 2^56090340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56090340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

56090340 is an abundant number, since it is smaller than the sum of its proper divisors (119543580).

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

56090340 is a wasteful number, since it uses less digits than its factorization.

56090340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 56090340 is about 7489.3484362794. The cubic root of 56090340 is about 382.7918572181.

The spelling of 56090340 in words is "fifty-six million, ninety thousand, three hundred forty".