40438124 has 6 divisors (see below), whose sum is σ = 70766724. Its totient is φ = 20219060.

The previous prime is 40438081. The next prime is 40438141. The reversal of 40438124 is 42183404.

It is a junction number, because it is equal to n+sod(n) for n = 40438093 and 40438102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5054762 + ... + 5054769.

It is an arithmetic number, because the mean of its divisors is an integer number (11794454).

Almost surely, 2^40438124 is an apocalyptic number.

It is an amenable number.

40438124 is a deficient number, since it is larger than the sum of its proper divisors (30328600).

40438124 is a wasteful number, since it uses less digits than its factorization.

40438124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109535 (or 10109533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 40438124 is about 6359.0977347419. The cubic root of 40438124 is about 343.2392939001.

It can be divided in two parts, 4043 and 8124, that added together give a cube (12167 = 23³).

The spelling of 40438124 in words is "forty million, four hundred thirty-eight thousand, one hundred twenty-four".