631550442 has 32 divisors (see below), whose sum is σ = 1357376832. Its totient is φ = 195174144.

The previous prime is 631550431. The next prime is 631550453. The reversal of 631550442 is 244055136.

631550442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (631550431) and next prime (631550453).

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, 39373 + ... + 53040.

It is an arithmetic number, because the mean of its divisors is an integer number (42418026).

Almost surely, 2^631550442 is an apocalyptic number.

631550442 is an abundant number, since it is smaller than the sum of its proper divisors (725826390).

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

631550442 is a wasteful number, since it uses less digits than its factorization.

631550442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92502.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 631550442 is about 25130.6673608163. The cubic root of 631550442 is about 857.9645580635.

The spelling of 631550442 in words is "six hundred thirty-one million, five hundred fifty thousand, four hundred forty-two".