31442950 has 48 divisors (see below), whose sum is σ = 72923904. Its totient is φ = 9799200.

The previous prime is 31442921. The next prime is 31442951. The reversal of 31442950 is 5924413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (1519248).

Almost surely, 2^31442950 is an apocalyptic number.

31442950 is an abundant number, since it is smaller than the sum of its proper divisors (41480954).

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

31442950 is a wasteful number, since it uses less digits than its factorization.

31442950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8197 (or 8192 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 31442950 is about 5607.4013589184. The cubic root of 31442950 is about 315.6272041803.

It can be divided in two parts, 314 and 42950, that added together give a square (43264 = 208²).

The spelling of 31442950 in words is "thirty-one million, four hundred forty-two thousand, nine hundred fifty".