31426752 has 112 divisors (see below), whose sum is σ = 96723200. Its totient is φ = 8819712.

The previous prime is 31426751. The next prime is 31426757. The reversal of 31426752 is 25762413.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (31426751) 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, 89874 + ... + 90222.

It is an arithmetic number, because the mean of its divisors is an integer number (863600).

Almost surely, 2^31426752 is an apocalyptic number.

31426752 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31426752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48361600).

31426752 is an abundant number, since it is smaller than the sum of its proper divisors (65296448).

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

31426752 is a wasteful number, since it uses less digits than its factorization.

31426752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 428 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 31426752 is about 5605.9568317995. The cubic root of 31426752 is about 315.5729958695.

The spelling of 31426752 in words is "thirty-one million, four hundred twenty-six thousand, seven hundred fifty-two".