642513354 has 32 divisors (see below), whose sum is σ = 1469644800. Its totient is φ = 183444912.

The previous prime is 642513343. The next prime is 642513373. The reversal of 642513354 is 453315246.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65247 + ... + 74445.

It is an arithmetic number, because the mean of its divisors is an integer number (45926400).

Almost surely, 2^642513354 is an apocalyptic number.

642513354 is an abundant number, since it is smaller than the sum of its proper divisors (827131446).

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

642513354 is a wasteful number, since it uses less digits than its factorization.

642513354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10874.

The product of its digits is 43200, while the sum is 33.

The square root of 642513354 is about 25347.8471275176. The cubic root of 642513354 is about 862.9004977239.

The spelling of 642513354 in words is "six hundred forty-two million, five hundred thirteen thousand, three hundred fifty-four".