215072934 has 32 divisors (see below), whose sum is σ = 442692096. Its totient is φ = 69608160.

The previous prime is 215072929. The next prime is 215072939. The reversal of 215072934 is 439270512.

It is an interprime number because it is at equal distance from previous prime (215072929) and next prime (215072939).

It is a junction number, because it is equal to n+sod(n) for n = 215072895 and 215072904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215072939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174099 + ... + 175329.

It is an arithmetic number, because the mean of its divisors is an integer number (13834128).

Almost surely, 2^215072934 is an apocalyptic number.

215072934 is an abundant number, since it is smaller than the sum of its proper divisors (227619162).

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

215072934 is a wasteful number, since it uses less digits than its factorization.

215072934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 215072934 is about 14665.3651164913. The cubic root of 215072934 is about 599.1403745505.

The spelling of 215072934 in words is "two hundred fifteen million, seventy-two thousand, nine hundred thirty-four".