642353360 has 40 divisors (see below), whose sum is σ = 1629243936. Its totient is φ = 233582720.

The previous prime is 642353357. The next prime is 642353377. The reversal of 642353360 is 63353246.

642353360 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364094 + ... + 365853.

Almost surely, 2^642353360 is an apocalyptic number.

It is an amenable number.

642353360 is an abundant number, since it is smaller than the sum of its proper divisors (986890576).

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

642353360 is a wasteful number, since it uses less digits than its factorization.

642353360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729971 (or 729965 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 642353360 is about 25344.6909628032. The cubic root of 642353360 is about 862.8288673770.

The spelling of 642353360 in words is "six hundred forty-two million, three hundred fifty-three thousand, three hundred sixty".