40515012 has 48 divisors (see below), whose sum is σ = 111222720. Its totient is φ = 12710016.

The previous prime is 40514993. The next prime is 40515023. The reversal of 40515012 is 21051504.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9198 + ... + 12869.

It is an arithmetic number, because the mean of its divisors is an integer number (2317140).

Almost surely, 2^40515012 is an apocalyptic number.

It is an amenable number.

40515012 is an abundant number, since it is smaller than the sum of its proper divisors (70707708).

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

40515012 is a wasteful number, since it uses less digits than its factorization.

40515012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22097 (or 22089 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 40515012 is about 6365.1403755141. The cubic root of 40515012 is about 343.4566982658.

Adding to 40515012 its reverse (21051504), we get a palindrome (61566516).

The spelling of 40515012 in words is "forty million, five hundred fifteen thousand, twelve".