40990325 has 6 divisors (see below), whose sum is σ = 50828034. Its totient is φ = 32792240.

The previous prime is 40990307. The next prime is 40990361. The reversal of 40990325 is 52309904.

It can be written as a sum of positive squares in 3 ways, for example, as 1136356 + 39853969 = 1066^2 + 6313^2 .

It is not a de Polignac number, because 40990325 - 2¹² = 40986229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40990291 and 40990300.

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, 819782 + ... + 819831.

It is an arithmetic number, because the mean of its divisors is an integer number (8471339).

Almost surely, 2^40990325 is an apocalyptic number.

It is an amenable number.

40990325 is a deficient number, since it is larger than the sum of its proper divisors (9837709).

40990325 is a wasteful number, since it uses less digits than its factorization.

40990325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639623 (or 1639618 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 40990325 is about 6402.3687022851. The cubic root of 40990325 is about 344.7945987323.

The spelling of 40990325 in words is "forty million, nine hundred ninety thousand, three hundred twenty-five".