31096272 has 20 divisors (see below), whose sum is σ = 80332160. Its totient is φ = 10365408.

The previous prime is 31096211. The next prime is 31096279. The reversal of 31096272 is 27269013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31096279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323872 + ... + 323967.

It is an arithmetic number, because the mean of its divisors is an integer number (4016608).

Almost surely, 2^31096272 is an apocalyptic number.

It is an amenable number.

31096272 is an abundant number, since it is smaller than the sum of its proper divisors (49235888).

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

31096272 is a wasteful number, since it uses less digits than its factorization.

31096272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647850 (or 647844 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 31096272 is about 5576.4031418110. The cubic root of 31096272 is about 314.4629195079.

The spelling of 31096272 in words is "thirty-one million, ninety-six thousand, two hundred seventy-two".