40253899 has 8 divisors (see below), whose sum is σ = 46522080. Its totient is φ = 34115136.

The previous prime is 40253893. The next prime is 40253911. The reversal of 40253899 is 99835204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40253899 - 2⁵ = 40253867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40253893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31684 + ... + 32929.

It is an arithmetic number, because the mean of its divisors is an integer number (5815260).

Almost surely, 2^40253899 is an apocalyptic number.

40253899 is a deficient number, since it is larger than the sum of its proper divisors (6268181).

40253899 is an equidigital number, since it uses as much as digits as its factorization.

40253899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64709.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 40253899 is about 6344.5960470309. The cubic root of 40253899 is about 342.7172656679.

The spelling of 40253899 in words is "forty million, two hundred fifty-three thousand, eight hundred ninety-nine".