642610416 has 40 divisors (see below), whose sum is σ = 1897231744. Its totient is φ = 183602880.

The previous prime is 642610393. The next prime is 642610427. The reversal of 642610416 is 614016246.

642610416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 955930 + ... + 956601.

Almost surely, 2^642610416 is an apocalyptic number.

It is an amenable number.

642610416 is an abundant number, since it is smaller than the sum of its proper divisors (1254621328).

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

642610416 is a wasteful number, since it uses less digits than its factorization.

642610416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912549 (or 1912543 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 642610416 is about 25349.7616556843. The cubic root of 642610416 is about 862.9439472131.

The spelling of 642610416 in words is "six hundred forty-two million, six hundred ten thousand, four hundred sixteen".