90009382 has 16 divisors (see below), whose sum is σ = 140047632. Its totient is φ = 43351200.

The previous prime is 90009377. The next prime is 90009389. The reversal of 90009382 is 28390009.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90009389) 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, 1453 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (8752977).

Almost surely, 2^90009382 is an apocalyptic number.

90009382 is a deficient number, since it is larger than the sum of its proper divisors (50038250).

90009382 is a wasteful number, since it uses less digits than its factorization.

90009382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12183.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90009382 is about 9487.3274424360. The cubic root of 90009382 is about 448.1560461663.

The spelling of 90009382 in words is "ninety million, nine thousand, three hundred eighty-two".