31834404 has 96 divisors (see below), whose sum is σ = 99912960. Its totient is φ = 8557056.

The previous prime is 31834399. The next prime is 31834417. The reversal of 31834404 is 40443813.

31834404 is a `hidden beast` number, since 318 + 344 + 0 + 4 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11614 + ... + 14090.

It is an arithmetic number, because the mean of its divisors is an integer number (1040760).

Almost surely, 2^31834404 is an apocalyptic number.

31834404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31834404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49956480).

31834404 is an abundant number, since it is smaller than the sum of its proper divisors (68078556).

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

31834404 is a wasteful number, since it uses less digits than its factorization.

31834404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 31834404 is about 5642.1985076741. The cubic root of 31834404 is about 316.9316228774.

The spelling of 31834404 in words is "thirty-one million, eight hundred thirty-four thousand, four hundred four".