190415285956 has 81 divisors (see below), whose sum is σ = 394065245007. Its totient is φ = 80273889360.

The previous prime is 190415285953. The next prime is 190415285981. The reversal of 190415285956 is 659582514091.

The square root of 190415285956 is 436366.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×190415285956² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190415285897 and 190415285906.

It is not an unprimeable number, because it can be changed into a prime (190415285953) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 433747585 + ... + 433748023.

Almost surely, 2^190415285956 is an apocalyptic number.

190415285956 is the 436366-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190415285956

190415285956 is an abundant number, since it is smaller than the sum of its proper divisors (203649959051).

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

190415285956 is an frugal number, since it uses more digits than its factorization.

190415285956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 55.

The spelling of 190415285956 in words is "one hundred ninety billion, four hundred fifteen million, two hundred eighty-five thousand, nine hundred fifty-six".