90330249 has 16 divisors (see below), whose sum is σ = 124637184. Its totient is φ = 58131600.

The previous prime is 90330211. The next prime is 90330281. The reversal of 90330249 is 94203309.

It is not a de Polignac number, because 90330249 - 2¹² = 90326153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90330049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45814 + ... + 47744.

It is an arithmetic number, because the mean of its divisors is an integer number (7789824).

Almost surely, 2^90330249 is an apocalyptic number.

It is an amenable number.

90330249 is a deficient number, since it is larger than the sum of its proper divisors (34306935).

90330249 is a wasteful number, since it uses less digits than its factorization.

90330249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 90330249 is about 9504.2226930981. Note that the first 3 decimals coincide. The cubic root of 90330249 is about 448.6879460960.

The spelling of 90330249 in words is "ninety million, three hundred thirty thousand, two hundred forty-nine".