40354999 has 8 divisors (see below), whose sum is σ = 41303808. Its totient is φ = 39410040.

The previous prime is 40354987. The next prime is 40355009. The reversal of 40354999 is 99945304.

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 40354999 - 2⁵ = 40354967 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 (40354939) 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, 36444 + ... + 37534.

It is an arithmetic number, because the mean of its divisors is an integer number (5162976).

Almost surely, 2^40354999 is an apocalyptic number.

40354999 is a deficient number, since it is larger than the sum of its proper divisors (948809).

40354999 is a wasteful number, since it uses less digits than its factorization.

40354999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 40354999 is about 6352.5584609667. The cubic root of 40354999 is about 343.0039438896.

The spelling of 40354999 in words is "forty million, three hundred fifty-four thousand, nine hundred ninety-nine".