642500354 has 16 divisors (see below), whose sum is σ = 1009877760. Its totient is φ = 305991840.

The previous prime is 642500347. The next prime is 642500357. The reversal of 642500354 is 453005246.

It is not an unprimeable number, because it can be changed into a prime (642500357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18227 + ... + 40214.

It is an arithmetic number, because the mean of its divisors is an integer number (63117360).

Almost surely, 2^642500354 is an apocalyptic number.

642500354 is a deficient number, since it is larger than the sum of its proper divisors (367377406).

642500354 is a wasteful number, since it uses less digits than its factorization.

642500354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58705.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 642500354 is about 25347.5906941863. The cubic root of 642500354 is about 862.8946779839.

The spelling of 642500354 in words is "six hundred forty-two million, five hundred thousand, three hundred fifty-four".