642104514 has 12 divisors (see below), whose sum is σ = 1391226486. Its totient is φ = 214034832.

The previous prime is 642104513. The next prime is 642104521. The reversal of 642104514 is 415401246.

642104514 is a `hidden beast` number, since 6 + 42 + 104 + 514 = 666.

It can be written as a sum of positive squares in only one way, i.e., 367373889 + 274730625 = 19167^2 + 16575^2 .

It is not an unprimeable number, because it can be changed into a prime (642104513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17836219 + ... + 17836254.

Almost surely, 2^642104514 is an apocalyptic number.

642104514 is an abundant number, since it is smaller than the sum of its proper divisors (749121972).

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

642104514 is a wasteful number, since it uses less digits than its factorization.

642104514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35672481 (or 35672478 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 642104514 is about 25339.7812539888. The cubic root of 642104514 is about 862.7174337758.

The spelling of 642104514 in words is "six hundred forty-two million, one hundred four thousand, five hundred fourteen".