642210315 has 16 divisors (see below), whose sum is σ = 1028721408. Its totient is φ = 342117216.

The previous prime is 642210313. The next prime is 642210323. The reversal of 642210315 is 513012246.

It is not a de Polignac number, because 642210315 - 2¹ = 642210313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642210311) 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, 10999 + ... + 37488.

It is an arithmetic number, because the mean of its divisors is an integer number (64295088).

Almost surely, 2^642210315 is an apocalyptic number.

642210315 is a deficient number, since it is larger than the sum of its proper divisors (386511093).

642210315 is a wasteful number, since it uses less digits than its factorization.

642210315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49378.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 642210315 is about 25341.8688142765. The cubic root of 642210315 is about 862.7648151353.

The spelling of 642210315 in words is "six hundred forty-two million, two hundred ten thousand, three hundred fifteen".