40287516 has 12 divisors (see below), whose sum is σ = 94004232. Its totient is φ = 13429168.

The previous prime is 40287509. The next prime is 40287529. The reversal of 40287516 is 61578204.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678635 + ... + 1678658.

It is an arithmetic number, because the mean of its divisors is an integer number (7833686).

Almost surely, 2^40287516 is an apocalyptic number.

It is an amenable number.

40287516 is an abundant number, since it is smaller than the sum of its proper divisors (53716716).

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

40287516 is a wasteful number, since it uses less digits than its factorization.

40287516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357300 (or 3357298 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 40287516 is about 6347.2447565853. The cubic root of 40287516 is about 342.8126429349.

The spelling of 40287516 in words is "forty million, two hundred eighty-seven thousand, five hundred sixteen".