90388366 has 16 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 44771608.

The previous prime is 90388349. The next prime is 90388369. The reversal of 90388366 is 66388309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90388369) 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, 125355 + ... + 126073.

It is an arithmetic number, because the mean of its divisors is an integer number (8553600).

Almost surely, 2^90388366 is an apocalyptic number.

90388366 is a deficient number, since it is larger than the sum of its proper divisors (46469234).

90388366 is a wasteful number, since it uses less digits than its factorization.

90388366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 90388366 is about 9507.2796319452. The cubic root of 90388366 is about 448.7841516206.

The spelling of 90388366 in words is "ninety million, three hundred eighty-eight thousand, three hundred sixty-six".