90149358 has 32 divisors (see below), whose sum is σ = 194535936. Its totient is φ = 27685728.

The previous prime is 90149347. The next prime is 90149359. The reversal of 90149358 is 85394109.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90149359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68535 + ... + 69837.

It is an arithmetic number, because the mean of its divisors is an integer number (6079248).

Almost surely, 2^90149358 is an apocalyptic number.

90149358 is an abundant number, since it is smaller than the sum of its proper divisors (104386578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90149358 is a wasteful number, since it uses less digits than its factorization.

90149358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 90149358 is about 9494.7015750891. The cubic root of 90149358 is about 448.3882390004.

The spelling of 90149358 in words is "ninety million, one hundred forty-nine thousand, three hundred fifty-eight".