31438124 has 6 divisors (see below), whose sum is σ = 55016724. Its totient is φ = 15719060.

The previous prime is 31438111. The next prime is 31438133. The reversal of 31438124 is 42183413.

It is a junction number, because it is equal to n+sod(n) for n = 31438093 and 31438102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3929762 + ... + 3929769.

It is an arithmetic number, because the mean of its divisors is an integer number (9169454).

Almost surely, 2^31438124 is an apocalyptic number.

It is an amenable number.

31438124 is a deficient number, since it is larger than the sum of its proper divisors (23578600).

31438124 is a wasteful number, since it uses less digits than its factorization.

31438124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7859535 (or 7859533 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 31438124 is about 5606.9710182950. The cubic root of 31438124 is about 315.6110554111.

The spelling of 31438124 in words is "thirty-one million, four hundred thirty-eight thousand, one hundred twenty-four".