31296048 has 80 divisors (see below), whose sum is σ = 97850880. Its totient is φ = 8414208.

The previous prime is 31296047. The next prime is 31296053. The reversal of 31296048 is 84069213.

It is not an unprimeable number, because it can be changed into a prime (31296047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2973 + ... + 8451.

It is an arithmetic number, because the mean of its divisors is an integer number (1223136).

Almost surely, 2^31296048 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 31296048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48925440).

31296048 is an abundant number, since it is smaller than the sum of its proper divisors (66554832).

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

31296048 is a wasteful number, since it uses less digits than its factorization.

31296048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 31296048 is about 5594.2870859476. The cubic root of 31296048 is about 315.1348981302.

The spelling of 31296048 in words is "thirty-one million, two hundred ninety-six thousand, forty-eight".