40772925 has 18 divisors (see below), whose sum is σ = 73029242. Its totient is φ = 21745440.

The previous prime is 40772899. The next prime is 40772929. The reversal of 40772925 is 52927704.

It can be written as a sum of positive squares in 3 ways, for example, as 285156 + 40487769 = 534^2 + 6363^2 .

It is not a de Polignac number, because 40772925 - 2⁶ = 40772861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40772925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40772929) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 90382 + ... + 90831.

Almost surely, 2^40772925 is an apocalyptic number.

40772925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40772925 is a deficient number, since it is larger than the sum of its proper divisors (32256317).

40772925 is a wasteful number, since it uses less digits than its factorization.

40772925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181229 (or 181221 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 40772925 is about 6385.3680395103. The cubic root of 40772925 is about 344.1839566175.

The spelling of 40772925 in words is "forty million, seven hundred seventy-two thousand, nine hundred twenty-five".