40112540 has 24 divisors (see below), whose sum is σ = 90716640. Its totient is φ = 14810688.

The previous prime is 40112533. The next prime is 40112557. The reversal of 40112540 is 4521104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76880 + ... + 77399.

It is an arithmetic number, because the mean of its divisors is an integer number (3779860).

Almost surely, 2^40112540 is an apocalyptic number.

It is an amenable number.

40112540 is an abundant number, since it is smaller than the sum of its proper divisors (50604100).

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

40112540 is a wasteful number, since it uses less digits than its factorization.

40112540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154301 (or 154299 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40112540 is about 6333.4461393463. The cubic root of 40112540 is about 342.3156234975.

Adding to 40112540 its reverse (4521104), we get a palindrome (44633644).

The spelling of 40112540 in words is "forty million, one hundred twelve thousand, five hundred forty".