40113399 has 4 divisors (see below), whose sum is σ = 53484536. Its totient is φ = 26742264.

The previous prime is 40113391. The next prime is 40113413. The reversal of 40113399 is 99331104.

40113399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40113399 - 2³ = 40113391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40113391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6685564 + ... + 6685569.

It is an arithmetic number, because the mean of its divisors is an integer number (13371134).

Almost surely, 2^40113399 is an apocalyptic number.

40113399 is a deficient number, since it is larger than the sum of its proper divisors (13371137).

40113399 is a wasteful number, since it uses less digits than its factorization.

40113399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13371136.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 40113399 is about 6333.5139535648. The cubic root of 40113399 is about 342.3180670145.

The spelling of 40113399 in words is "forty million, one hundred thirteen thousand, three hundred ninety-nine".