31955448 has 96 divisors (see below), whose sum is σ = 96238800. Its totient is φ = 8805888.

The previous prime is 31955447. The next prime is 31955453. The reversal of 31955448 is 84455913.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31955447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33636 + ... + 34572.

Almost surely, 2^31955448 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 31955448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48119400).

31955448 is an abundant number, since it is smaller than the sum of its proper divisors (64283352).

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

31955448 is a wasteful number, since it uses less digits than its factorization.

31955448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 978 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 31955448 is about 5652.9150002454. The cubic root of 31955448 is about 317.3328046896.

The spelling of 31955448 in words is "thirty-one million, nine hundred fifty-five thousand, four hundred forty-eight".