31049448 has 32 divisors (see below), whose sum is σ = 81000000. Its totient is φ = 9899648.

The previous prime is 31049441. The next prime is 31049461. The reversal of 31049448 is 84494013.

It is a happy number.

It is a super-2 number, since 2×31049448² = 1928136442209408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31049441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27573 + ... + 28676.

It is an arithmetic number, because the mean of its divisors is an integer number (2531250).

Almost surely, 2^31049448 is an apocalyptic number.

It is an amenable number.

31049448 is an abundant number, since it is smaller than the sum of its proper divisors (49950552).

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

31049448 is a wasteful number, since it uses less digits than its factorization.

31049448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56281 (or 56277 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 31049448 is about 5572.2031549469. The cubic root of 31049448 is about 314.3050033813.

The spelling of 31049448 in words is "thirty-one million, forty-nine thousand, four hundred forty-eight".