31629044 has 12 divisors (see below), whose sum is σ = 58606884. Its totient is φ = 14884224.

The previous prime is 31629041. The next prime is 31629067. The reversal of 31629044 is 44092613.

It can be written as a sum of positive squares in 2 ways, for example, as 29702500 + 1926544 = 5450^2 + 1388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31628998 and 31629016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31629041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232499 + ... + 232634.

It is an arithmetic number, because the mean of its divisors is an integer number (4883907).

Almost surely, 2^31629044 is an apocalyptic number.

31629044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31629044 is a deficient number, since it is larger than the sum of its proper divisors (26977840).

31629044 is a wasteful number, since it uses less digits than its factorization.

31629044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465154 (or 465152 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 31629044 is about 5623.9704835641. The cubic root of 31629044 is about 316.2486559645.

The spelling of 31629044 in words is "thirty-one million, six hundred twenty-nine thousand, forty-four".