90163330 has 16 divisors (see below), whose sum is σ = 162481464. Its totient is φ = 36023680.

The previous prime is 90163313. The next prime is 90163357. The reversal of 90163330 is 3336109.

It can be written as a sum of positive squares in 4 ways, for example, as 78198649 + 11964681 = 8843^2 + 3459^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90163295 and 90163304.

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, 4800 + ... + 14260.

Almost surely, 2^90163330 is an apocalyptic number.

90163330 is a deficient number, since it is larger than the sum of its proper divisors (72318134).

90163330 is a wasteful number, since it uses less digits than its factorization.

90163330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10421.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 90163330 is about 9495.4373253684. The cubic root of 90163330 is about 448.4114026220.

Adding to 90163330 its reverse (3336109), we get a palindrome (93499439).

The spelling of 90163330 in words is "ninety million, one hundred sixty-three thousand, three hundred thirty".