642542362 has 16 divisors (see below), whose sum is σ = 1201637952. Its totient is φ = 250341120.

The previous prime is 642542359. The next prime is 642542371. The reversal of 642542362 is 263245246.

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, 2086023 + ... + 2086330.

It is an arithmetic number, because the mean of its divisors is an integer number (75102372).

Almost surely, 2^642542362 is an apocalyptic number.

642542362 is a deficient number, since it is larger than the sum of its proper divisors (559095590).

642542362 is a wasteful number, since it uses less digits than its factorization.

642542362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172373.

The product of its digits is 69120, while the sum is 34.

The square root of 642542362 is about 25348.4193195552. The cubic root of 642542362 is about 862.9134835194.

The spelling of 642542362 in words is "six hundred forty-two million, five hundred forty-two thousand, three hundred sixty-two".