31641442 has 16 divisors (see below), whose sum is σ = 54531072. Its totient is φ = 13488480.

The previous prime is 31641439. The next prime is 31641461. The reversal of 31641442 is 24414613.

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, 3243 + ... + 8590.

It is an arithmetic number, because the mean of its divisors is an integer number (3408192).

Almost surely, 2^31641442 is an apocalyptic number.

31641442 is a deficient number, since it is larger than the sum of its proper divisors (22889630).

31641442 is a wasteful number, since it uses less digits than its factorization.

31641442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12033.

The product of its digits is 2304, while the sum is 25.

The square root of 31641442 is about 5625.0726217534. The cubic root of 31641442 is about 316.2899717738.

The spelling of 31641442 in words is "thirty-one million, six hundred forty-one thousand, four hundred forty-two".