40438125 has 120 divisors (see below), whose sum is σ = 90970880. Its totient is φ = 16848000.

The previous prime is 40438081. The next prime is 40438141. The reversal of 40438125 is 52183404.

It is not a de Polignac number, because 40438125 - 2⁸ = 40437869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 511836 + ... + 511914.

Almost surely, 2^40438125 is an apocalyptic number.

40438125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40438125 is an abundant number, since it is smaller than the sum of its proper divisors (50532755).

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

40438125 is a wasteful number, since it uses less digits than its factorization.

40438125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40438125 is about 6359.0978133694. The cubic root of 40438125 is about 343.2392967294.

The spelling of 40438125 in words is "forty million, four hundred thirty-eight thousand, one hundred twenty-five".