642494462 has 16 divisors (see below), whose sum is σ = 1028366160. Its totient is φ = 300169152.

The previous prime is 642494459. The next prime is 642494509. The reversal of 642494462 is 264494246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113033 + ... + 118580.

It is an arithmetic number, because the mean of its divisors is an integer number (64272885).

Almost surely, 2^642494462 is an apocalyptic number.

642494462 is a deficient number, since it is larger than the sum of its proper divisors (385871698).

642494462 is a wasteful number, since it uses less digits than its factorization.

642494462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231707.

The product of its digits is 331776, while the sum is 41.

The square root of 642494462 is about 25347.4744698560. The cubic root of 642494462 is about 862.8920402727.

The spelling of 642494462 in words is "six hundred forty-two million, four hundred ninety-four thousand, four hundred sixty-two".