216256074 has 32 divisors (see below), whose sum is σ = 466888320. Its totient is φ = 66572352.

The previous prime is 216256057. The next prime is 216256087. The reversal of 216256074 is 470652612.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23017 + ... + 31020.

It is an arithmetic number, because the mean of its divisors is an integer number (14590260).

Almost surely, 2^216256074 is an apocalyptic number.

216256074 is an abundant number, since it is smaller than the sum of its proper divisors (250632246).

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

216256074 is a wasteful number, since it uses less digits than its factorization.

216256074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54094.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 216256074 is about 14705.6476905983. The cubic root of 216256074 is about 600.2370119188.

The spelling of 216256074 in words is "two hundred sixteen million, two hundred fifty-six thousand, seventy-four".