56190390 has 16 divisors (see below), whose sum is σ = 134857008. Its totient is φ = 14984096.

The previous prime is 56190349. The next prime is 56190401. The reversal of 56190390 is 9309165.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936477 + ... + 936536.

It is an arithmetic number, because the mean of its divisors is an integer number (8428563).

Almost surely, 2^56190390 is an apocalyptic number.

56190390 is an abundant number, since it is smaller than the sum of its proper divisors (78666618).

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

56190390 is a wasteful number, since it uses less digits than its factorization.

56190390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873023.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 56190390 is about 7496.0249465967. The cubic root of 56190390 is about 383.0193210831.

It can be divided in two parts, 561 and 90390, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 56190390 in words is "fifty-six million, one hundred ninety thousand, three hundred ninety".