31923248 has 40 divisors (see below), whose sum is σ = 71900160. Its totient is φ = 13446720.

The previous prime is 31923247. The next prime is 31923253. The reversal of 31923248 is 84232913.

It is a happy number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (31923247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4193 + ... + 9023.

It is an arithmetic number, because the mean of its divisors is an integer number (1797504).

Almost surely, 2^31923248 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 31923248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35950080).

31923248 is an abundant number, since it is smaller than the sum of its proper divisors (39976912).

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

31923248 is a wasteful number, since it uses less digits than its factorization.

31923248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905 (or 4899 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 31923248 is about 5650.0661943025. The cubic root of 31923248 is about 317.2261817612.

The spelling of 31923248 in words is "thirty-one million, nine hundred twenty-three thousand, two hundred forty-eight".