40215016 has 8 divisors (see below), whose sum is σ = 75403170. Its totient is φ = 20107504.

The previous prime is 40214983. The next prime is 40215023. The reversal of 40215016 is 61051204.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 1102500 = 6254^2 + 1050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 40214984 and 40215002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513431 + ... + 2513446.

Almost surely, 2^40215016 is an apocalyptic number.

It is an amenable number.

40215016 is a deficient number, since it is larger than the sum of its proper divisors (35188154).

40215016 is a wasteful number, since it uses less digits than its factorization.

40215016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026883 (or 5026879 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40215016 is about 6341.5310454180. The cubic root of 40215016 is about 342.6068815911.

The spelling of 40215016 in words is "forty million, two hundred fifteen thousand, sixteen".