31942080 has 112 divisors (see below), whose sum is σ = 112715040. Its totient is φ = 8515584.

The previous prime is 31942073. The next prime is 31942091. The reversal of 31942080 is 8024913.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6792 + ... + 10488.

Almost surely, 2^31942080 is an apocalyptic number.

31942080 is a gapful number since it is divisible by the number (30) 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 31942080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56357520).

31942080 is an abundant number, since it is smaller than the sum of its proper divisors (80772960).

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

31942080 is a wasteful number, since it uses less digits than its factorization.

31942080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723 (or 3707 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 31942080 is about 5651.7324777452. The cubic root of 31942080 is about 317.2885483174.

Adding to 31942080 its reverse (8024913), we get a palindrome (39966993).

The spelling of 31942080 in words is "thirty-one million, nine hundred forty-two thousand, eighty".