31842612 has 48 divisors (see below), whose sum is σ = 84127680. Its totient is φ = 10412064.

The previous prime is 31842593. The next prime is 31842623. The reversal of 31842612 is 21624813.

31842612 is a `hidden beast` number, since 3 + 1 + 8 + 42 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2943 + ... + 8505.

It is an arithmetic number, because the mean of its divisors is an integer number (1752660).

Almost surely, 2^31842612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31842612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42063840).

31842612 is an abundant number, since it is smaller than the sum of its proper divisors (52285068).

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

31842612 is a wasteful number, since it uses less digits than its factorization.

31842612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629 (or 5621 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 31842612 is about 5642.9258368332. The cubic root of 31842612 is about 316.9588591469.

The spelling of 31842612 in words is "thirty-one million, eight hundred forty-two thousand, six hundred twelve".