40118925 has 48 divisors (see below), whose sum is σ = 82708992. Its totient is φ = 16670400.

The previous prime is 40118891. The next prime is 40118927. The reversal of 40118925 is 52981104.

It is a happy number.

It is not a de Polignac number, because 40118925 - 2¹¹ = 40116877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40118892 and 40118901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40118927) by changing a digit.

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 in 47 ways as a sum of consecutive naturals, for example, 2302 + ... + 9248.

It is an arithmetic number, because the mean of its divisors is an integer number (1723104).

Almost surely, 2^40118925 is an apocalyptic number.

It is an amenable number.

40118925 is an abundant number, since it is smaller than the sum of its proper divisors (42590067).

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

40118925 is a wasteful number, since it uses less digits than its factorization.

40118925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978 (or 6973 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 40118925 is about 6333.9501892579. The cubic root of 40118925 is about 342.3337854763. Note that the first 3 decimals are identical.

The spelling of 40118925 in words is "forty million, one hundred eighteen thousand, nine hundred twenty-five".