31839054 has 32 divisors (see below), whose sum is σ = 69457920. Its totient is φ = 9670752.

The previous prime is 31839053. The next prime is 31839089. The reversal of 31839054 is 45093813.

It is a super-2 number, since 2×31839054² = 2027450719229832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31839053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3579 + ... + 8745.

It is an arithmetic number, because the mean of its divisors is an integer number (2170560).

Almost surely, 2^31839054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31839054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34728960).

31839054 is an abundant number, since it is smaller than the sum of its proper divisors (37618866).

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

31839054 is a wasteful number, since it uses less digits than its factorization.

31839054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 31839054 is about 5642.6105660412. The cubic root of 31839054 is about 316.9470533563.

The spelling of 31839054 in words is "thirty-one million, eight hundred thirty-nine thousand, fifty-four".