90404049 has 8 divisors (see below), whose sum is σ = 124695360. Its totient is φ = 58191056.

The previous prime is 90404047. The next prime is 90404063. The reversal of 90404049 is 94040409.

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 90404049 - 2¹ = 90404047 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90404047) 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, 519477 + ... + 519650.

It is an arithmetic number, because the mean of its divisors is an integer number (15586920).

Almost surely, 2^90404049 is an apocalyptic number.

It is an amenable number.

90404049 is a deficient number, since it is larger than the sum of its proper divisors (34291311).

90404049 is a wasteful number, since it uses less digits than its factorization.

90404049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039159.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 90404049 is about 9508.1043852074. The cubic root of 90404049 is about 448.8101058267.

The spelling of 90404049 in words is "ninety million, four hundred four thousand, forty-nine".