31048416 has 72 divisors (see below), whose sum is σ = 100913904. Its totient is φ = 8870400.

The previous prime is 31048411. The next prime is 31048429. The reversal of 31048416 is 61484013.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×31048416² = 1928008272218112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31048416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31048411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5685 + ... + 9716.

It is an arithmetic number, because the mean of its divisors is an integer number (1401582).

Almost surely, 2^31048416 is an apocalyptic number.

31048416 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31048416 is an abundant number, since it is smaller than the sum of its proper divisors (69865488).

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

31048416 is a wasteful number, since it uses less digits than its factorization.

31048416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15424 (or 15413 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 31048416 is about 5572.1105516671. The cubic root of 31048416 is about 314.3015211255.

The spelling of 31048416 in words is "thirty-one million, forty-eight thousand, four hundred sixteen".