40007516 has 12 divisors (see below), whose sum is σ = 70401240. Its totient is φ = 19892880.

The previous prime is 40007507. The next prime is 40007519. The reversal of 40007516 is 61570004.

It is a junction number, because it is equal to n+sod(n) for n = 40007491 and 40007500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26906 + ... + 28353.

It is an arithmetic number, because the mean of its divisors is an integer number (5866770).

Almost surely, 2^40007516 is an apocalyptic number.

It is an amenable number.

40007516 is a deficient number, since it is larger than the sum of its proper divisors (30393724).

40007516 is a wasteful number, since it uses less digits than its factorization.

40007516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55444 (or 55442 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 40007516 is about 6325.1494843996. The cubic root of 40007516 is about 342.0166082925.

The spelling of 40007516 in words is "forty million, seven thousand, five hundred sixteen".