642456246 has 32 divisors (see below), whose sum is σ = 1305168480. Its totient is φ = 210802176.

The previous prime is 642456229. The next prime is 642456313. The reversal of 642456246 is 642654246.

642456246 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 15 ways as a sum of consecutive naturals, for example, 99550 + ... + 105806.

It is an arithmetic number, because the mean of its divisors is an integer number (40786515).

Almost surely, 2^642456246 is an apocalyptic number.

642456246 is an abundant number, since it is smaller than the sum of its proper divisors (662712234).

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

642456246 is a wasteful number, since it uses less digits than its factorization.

642456246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528.

The product of its digits is 276480, while the sum is 39.

The square root of 642456246 is about 25346.7206162849. The cubic root of 642456246 is about 862.8749314684.

The spelling of 642456246 in words is "six hundred forty-two million, four hundred fifty-six thousand, two hundred forty-six".