40890359 has 4 divisors (see below), whose sum is σ = 40903200. Its totient is φ = 40877520.

The previous prime is 40890349. The next prime is 40890361. The reversal of 40890359 is 95309804.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40890359 - 2⁸ = 40890103 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 (40890349) 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, 2354 + ... + 9344.

It is an arithmetic number, because the mean of its divisors is an integer number (10225800).

Almost surely, 2^40890359 is an apocalyptic number.

40890359 is a deficient number, since it is larger than the sum of its proper divisors (12841).

40890359 is an equidigital number, since it uses as much as digits as its factorization.

40890359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 40890359 is about 6394.5569823093. The cubic root of 40890359 is about 344.5140789225.

The spelling of 40890359 in words is "forty million, eight hundred ninety thousand, three hundred fifty-nine".