31442948 has 24 divisors (see below), whose sum is σ = 58665600. Its totient is φ = 14702688.

The previous prime is 31442921. The next prime is 31442951. The reversal of 31442948 is 84924413.

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, 3386 + ... + 8622.

It is an arithmetic number, because the mean of its divisors is an integer number (2444400).

Almost surely, 2^31442948 is an apocalyptic number.

31442948 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

31442948 is a deficient number, since it is larger than the sum of its proper divisors (27222652).

31442948 is a wasteful number, since it uses less digits than its factorization.

31442948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339 (or 5337 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 31442948 is about 5607.4011805827. The cubic root of 31442948 is about 315.6271974882.

The spelling of 31442948 in words is "thirty-one million, four hundred forty-two thousand, nine hundred forty-eight".