31534048 has 144 divisors (see below), whose sum is σ = 83008800. Its totient is φ = 11741184.

The previous prime is 31534033. The next prime is 31534051. The reversal of 31534048 is 84043513.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 1854936 + ... + 1854952.

It is an arithmetic number, because the mean of its divisors is an integer number (576450).

Almost surely, 2^31534048 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 31534048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41504400).

31534048 is an abundant number, since it is smaller than the sum of its proper divisors (51474752).

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

31534048 is a wasteful number, since it uses less digits than its factorization.

31534048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 31534048 is about 5615.5184978771. The cubic root of 31534048 is about 315.9317269585.

The spelling of 31534048 in words is "thirty-one million, five hundred thirty-four thousand, forty-eight".