40736725 has 6 divisors (see below), whose sum is σ = 50513570. Its totient is φ = 32589360.

The previous prime is 40736723. The next prime is 40736753. The reversal of 40736725 is 52763704.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12794929 + 27941796 = 3577^2 + 5286^2 .

It is not a de Polignac number, because 40736725 - 2¹ = 40736723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40736723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 814710 + ... + 814759.

Almost surely, 2^40736725 is an apocalyptic number.

It is an amenable number.

40736725 is a deficient number, since it is larger than the sum of its proper divisors (9776845).

40736725 is a wasteful number, since it uses less digits than its factorization.

40736725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629479 (or 1629474 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 40736725 is about 6382.5328044594. The cubic root of 40736725 is about 344.0820658946.

The spelling of 40736725 in words is "forty million, seven hundred thirty-six thousand, seven hundred twenty-five".