31413930 has 16 divisors (see below), whose sum is σ = 75393504. Its totient is φ = 8377040.

The previous prime is 31413919. The next prime is 31413979. The reversal of 31413930 is 3931413.

It is a self number, because there is not a number n which added to its sum of digits gives 31413930.

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, 523536 + ... + 523595.

It is an arithmetic number, because the mean of its divisors is an integer number (4712094).

Almost surely, 2^31413930 is an apocalyptic number.

31413930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31413930 is an abundant number, since it is smaller than the sum of its proper divisors (43979574).

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

31413930 is a wasteful number, since it uses less digits than its factorization.

31413930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047141.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 31413930 is about 5604.8131101759. The cubic root of 31413930 is about 315.5300724883.

The spelling of 31413930 in words is "thirty-one million, four hundred thirteen thousand, nine hundred thirty".