40491325 has 12 divisors (see below), whose sum is σ = 57382240. Its totient is φ = 27765360.

The previous prime is 40491317. The next prime is 40491343. The reversal of 40491325 is 52319404.

It is not a de Polignac number, because 40491325 - 2³ = 40491317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40491293 and 40491302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115515 + ... + 115864.

Almost surely, 2^40491325 is an apocalyptic number.

It is an amenable number.

40491325 is a deficient number, since it is larger than the sum of its proper divisors (16890915).

40491325 is a wasteful number, since it uses less digits than its factorization.

40491325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231396 (or 231391 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40491325 is about 6363.2794218076. The cubic root of 40491325 is about 343.3897515187.

The spelling of 40491325 in words is "forty million, four hundred ninety-one thousand, three hundred twenty-five".