40203925 has 24 divisors (see below), whose sum is σ = 51559200. Its totient is φ = 31080000.

The previous prime is 40203913. The next prime is 40203949. The reversal of 40203925 is 52930204.

It is a happy number.

It is not a de Polignac number, because 40203925 - 2¹¹ = 40201877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 40203925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160050 + ... + 160300.

It is an arithmetic number, because the mean of its divisors is an integer number (2148300).

Almost surely, 2^40203925 is an apocalyptic number.

It is an amenable number.

40203925 is a deficient number, since it is larger than the sum of its proper divisors (11355275).

40203925 is a wasteful number, since it uses less digits than its factorization.

40203925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40203925 is about 6340.6565117502. The cubic root of 40203925 is about 342.5753825585.

The spelling of 40203925 in words is "forty million, two hundred three thousand, nine hundred twenty-five".