31049082 has 48 divisors (see below), whose sum is σ = 72203040. Its totient is φ = 9988272.

The previous prime is 31049077. The next prime is 31049099. The reversal of 31049082 is 28094013.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12993 + ... + 15195.

It is an arithmetic number, because the mean of its divisors is an integer number (1504230).

Almost surely, 2^31049082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31049082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36101520).

31049082 is an abundant number, since it is smaller than the sum of its proper divisors (41153958).

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

31049082 is a wasteful number, since it uses less digits than its factorization.

31049082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 31049082 is about 5572.1703132621. The cubic root of 31049082 is about 314.3037684040.

The spelling of 31049082 in words is "thirty-one million, forty-nine thousand, eighty-two".