40312925 has 6 divisors (see below), whose sum is σ = 49988058. Its totient is φ = 32250320.

The previous prime is 40312907. The next prime is 40312939. The reversal of 40312925 is 52921304.

It can be written as a sum of positive squares in 3 ways, for example, as 41209 + 40271716 = 203^2 + 6346^2 .

It is not a de Polignac number, because 40312925 - 2¹⁴ = 40296541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40312894 and 40312903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 806234 + ... + 806283.

It is an arithmetic number, because the mean of its divisors is an integer number (8331343).

Almost surely, 2^40312925 is an apocalyptic number.

It is an amenable number.

40312925 is a deficient number, since it is larger than the sum of its proper divisors (9675133).

40312925 is a wasteful number, since it uses less digits than its factorization.

40312925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612527 (or 1612522 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40312925 is about 6349.2460182293. The cubic root of 40312925 is about 342.8846974796.

The spelling of 40312925 in words is "forty million, three hundred twelve thousand, nine hundred twenty-five".