40465287 has 24 divisors (see below), whose sum is σ = 62753184. Its totient is φ = 25035264.

The previous prime is 40465283. The next prime is 40465289. The reversal of 40465287 is 78256404.

It is not a de Polignac number, because 40465287 - 2² = 40465283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40465283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9358 + ... + 12980.

It is an arithmetic number, because the mean of its divisors is an integer number (2614716).

Almost surely, 2^40465287 is an apocalyptic number.

40465287 is a deficient number, since it is larger than the sum of its proper divisors (22287897).

40465287 is a wasteful number, since it uses less digits than its factorization.

40465287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3716 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 40465287 is about 6361.2331351712. The cubic root of 40465287 is about 343.3161299913.

The spelling of 40465287 in words is "forty million, four hundred sixty-five thousand, two hundred eighty-seven".