40199715 has 24 divisors (see below), whose sum is σ = 71929728. Its totient is φ = 20747520.

The previous prime is 40199707. The next prime is 40199741. The reversal of 40199715 is 51799104.

It is not a de Polignac number, because 40199715 - 2³ = 40199707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40199715.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13014 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (2997072).

Almost surely, 2^40199715 is an apocalyptic number.

40199715 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40199715 is a deficient number, since it is larger than the sum of its proper divisors (31730013).

40199715 is a wasteful number, since it uses less digits than its factorization.

40199715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28859 (or 28856 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 40199715 is about 6340.3245185085. The cubic root of 40199715 is about 342.5634244168.

The spelling of 40199715 in words is "forty million, one hundred ninety-nine thousand, seven hundred fifteen".