40002496 has 28 divisors (see below), whose sum is σ = 84051648. Its totient is φ = 18824192.

The previous prime is 40002491. The next prime is 40002559. The reversal of 40002496 is 69420004.

It is a self number, because there is not a number n which added to its sum of digits gives 40002496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002491) 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, 17296 + ... + 19471.

Almost surely, 2^40002496 is an apocalyptic number.

It is an amenable number.

40002496 is an abundant number, since it is smaller than the sum of its proper divisors (44049152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40002496 is a wasteful number, since it uses less digits than its factorization.

40002496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36796 (or 36786 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40002496 is about 6324.7526433846. The cubic root of 40002496 is about 342.0023026873.

The spelling of 40002496 in words is "forty million, two thousand, four hundred ninety-six".