31049304 has 128 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 8501760.

The previous prime is 31049299. The next prime is 31049323. The reversal of 31049304 is 40394013.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 31 ways as a sum of consecutive naturals, for example, 284802 + ... + 284910.

It is an arithmetic number, because the mean of its divisors is an integer number (727650).

Almost surely, 2^31049304 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 31049304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46569600).

31049304 is an abundant number, since it is smaller than the sum of its proper divisors (62089896).

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

31049304 is a wasteful number, since it uses less digits than its factorization.

31049304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 31049304 is about 5572.1902336514. The cubic root of 31049304 is about 314.3045174897.

The spelling of 31049304 in words is "thirty-one million, forty-nine thousand, three hundred four".