40464215 has 12 divisors (see below), whose sum is σ = 53373432. Its totient is φ = 29428080.

The previous prime is 40464209. The next prime is 40464217. The reversal of 40464215 is 51246404.

It is a de Polignac number, because none of the positive numbers 2^k-40464215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40464217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32837 + ... + 34046.

It is an arithmetic number, because the mean of its divisors is an integer number (4447786).

Almost surely, 2^40464215 is an apocalyptic number.

40464215 is a deficient number, since it is larger than the sum of its proper divisors (12909217).

40464215 is a wasteful number, since it uses less digits than its factorization.

40464215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66910 (or 66899 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40464215 is about 6361.1488742208. The cubic root of 40464215 is about 343.3130982722.

The spelling of 40464215 in words is "forty million, four hundred sixty-four thousand, two hundred fifteen".