31442030 has 16 divisors (see below), whose sum is σ = 57912624. Its totient is φ = 12284160.

The previous prime is 31441999. The next prime is 31442069. The reversal of 31442030 is 3024413.

It is a congruent number.

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, 36131 + ... + 36990.

It is an arithmetic number, because the mean of its divisors is an integer number (3619539).

Almost surely, 2^31442030 is an apocalyptic number.

31442030 is a deficient number, since it is larger than the sum of its proper divisors (26470594).

31442030 is a wasteful number, since it uses less digits than its factorization.

31442030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73171.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 31442030 is about 5607.3193238837. The cubic root of 31442030 is about 315.6241258022.

Adding to 31442030 its reverse (3024413), we get a palindrome (34466443).

The spelling of 31442030 in words is "thirty-one million, four hundred forty-two thousand, thirty".