215744130 has 48 divisors (see below), whose sum is σ = 641070144. Its totient is φ = 49312800.

The previous prime is 215744057. The next prime is 215744131. The reversal of 215744130 is 31447512.

215744130 is a `hidden beast` number, since 21 + 574 + 41 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 215744094 and 215744103.

It is not an unprimeable number, because it can be changed into a prime (215744131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170596 + ... + 171855.

It is an arithmetic number, because the mean of its divisors is an integer number (13355628).

Almost surely, 2^215744130 is an apocalyptic number.

215744130 is an abundant number, since it is smaller than the sum of its proper divisors (425326014).

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

215744130 is a wasteful number, since it uses less digits than its factorization.

215744130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342471 (or 342468 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 215744130 is about 14688.2310030854. The cubic root of 215744130 is about 599.7629897225.

The spelling of 215744130 in words is "two hundred fifteen million, seven hundred forty-four thousand, one hundred thirty".