90381370 has 16 divisors (see below), whose sum is σ = 162802080. Its totient is φ = 36126864.

The previous prime is 90381349. The next prime is 90381397. The reversal of 90381370 is 7318309.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18661 + ... + 22999.

It is an arithmetic number, because the mean of its divisors is an integer number (10175130).

Almost surely, 2^90381370 is an apocalyptic number.

90381370 is a deficient number, since it is larger than the sum of its proper divisors (72420710).

90381370 is a wasteful number, since it uses less digits than its factorization.

90381370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 90381370 is about 9506.9116962345. The cubic root of 90381370 is about 448.7725727893.

Adding to 90381370 its reverse (7318309), we get a palindrome (97699679).

The spelling of 90381370 in words is "ninety million, three hundred eighty-one thousand, three hundred seventy".