90408543226 has 8 divisors (see below), whose sum is σ = 137835975924. Its totient is φ = 44463217920.

The previous prime is 90408543209. The next prime is 90408543229. The reversal of 90408543226 is 62234580409.

It can be written as a sum of positive squares in 2 ways, for example, as 75268471201 + 15140072025 = 274351^2 + 123045^2 .

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

It is not an unprimeable number, because it can be changed into a prime (90408543229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370526695 + ... + 370526938.

Almost surely, 2^90408543226 is an apocalyptic number.

90408543226 is a deficient number, since it is larger than the sum of its proper divisors (47427432698).

90408543226 is a wasteful number, since it uses less digits than its factorization.

90408543226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741053696.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 90408543226 in words is "ninety billion, four hundred eight million, five hundred forty-three thousand, two hundred twenty-six".