40365725 has 6 divisors (see below), whose sum is σ = 50053530. Its totient is φ = 32292560.

The previous prime is 40365707. The next prime is 40365763. The reversal of 40365725 is 52756304.

It can be written as a sum of positive squares in 3 ways, for example, as 763876 + 39601849 = 874^2 + 6293^2 .

It is not a de Polignac number, because 40365725 - 2¹⁴ = 40349341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40365691 and 40365700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 807290 + ... + 807339.

It is an arithmetic number, because the mean of its divisors is an integer number (8342255).

Almost surely, 2^40365725 is an apocalyptic number.

It is an amenable number.

40365725 is a deficient number, since it is larger than the sum of its proper divisors (9687805).

40365725 is a wasteful number, since it uses less digits than its factorization.

40365725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614639 (or 1614634 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 40365725 is about 6353.4026316612. The cubic root of 40365725 is about 343.0343303306.

The spelling of 40365725 in words is "forty million, three hundred sixty-five thousand, seven hundred twenty-five".