40915530 has 40 divisors (see below), whose sum is σ = 110019492. Its totient is φ = 10910592.

The previous prime is 40915453. The next prime is 40915541. The reversal of 40915530 is 3551904.

40915530 is a `hidden beast` number, since 40 + 91 + 5 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39350529 + 1565001 = 6273^2 + 1251^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40915494 and 40915503.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24447 + ... + 26066.

Almost surely, 2^40915530 is an apocalyptic number.

40915530 is an abundant number, since it is smaller than the sum of its proper divisors (69103962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40915530 is a wasteful number, since it uses less digits than its factorization.

40915530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50532 (or 50523 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 40915530 is about 6396.5248377537. The cubic root of 40915530 is about 344.5847556080.

The spelling of 40915530 in words is "forty million, nine hundred fifteen thousand, five hundred thirty".