215674242 has 32 divisors (see below), whose sum is σ = 493832832. Its totient is φ = 61513344.

The previous prime is 215674231. The next prime is 215674253. The reversal of 215674242 is 242476512.

It is an interprime number because it is at equal distance from previous prime (215674231) and next prime (215674253).

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, 21558 + ... + 29934.

It is an arithmetic number, because the mean of its divisors is an integer number (15432276).

Almost surely, 2^215674242 is an apocalyptic number.

215674242 is an abundant number, since it is smaller than the sum of its proper divisors (278158590).

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

215674242 is a wasteful number, since it uses less digits than its factorization.

215674242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9002.

The product of its digits is 26880, while the sum is 33.

The square root of 215674242 is about 14685.8517628362. The cubic root of 215674242 is about 599.6982204629.

The spelling of 215674242 in words is "two hundred fifteen million, six hundred seventy-four thousand, two hundred forty-two".