40632915 has 24 divisors (see below), whose sum is σ = 67352688. Its totient is φ = 20917120.

The previous prime is 40632913. The next prime is 40632983. The reversal of 40632915 is 51923604.

It is not a de Polignac number, because 40632915 - 2¹ = 40632913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40632913) 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, 11005 + ... + 14225.

It is an arithmetic number, because the mean of its divisors is an integer number (2806362).

Almost surely, 2^40632915 is an apocalyptic number.

40632915 is a deficient number, since it is larger than the sum of its proper divisors (26719773).

40632915 is a wasteful number, since it uses less digits than its factorization.

40632915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287 (or 3258 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 40632915 is about 6374.3952654350. The cubic root of 40632915 is about 343.7895407959.

The spelling of 40632915 in words is "forty million, six hundred thirty-two thousand, nine hundred fifteen".