90636030 has 32 divisors (see below), whose sum is σ = 241696800. Its totient is φ = 24169536.

The previous prime is 90636019. The next prime is 90636041. The reversal of 90636030 is 3063609.

It is an interprime number because it is at equal distance from previous prime (90636019) and next prime (90636041).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 90635985 and 90636003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167575 + ... + 168114.

It is an arithmetic number, because the mean of its divisors is an integer number (7553025).

Almost surely, 2^90636030 is an apocalyptic number.

90636030 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90636030 is an abundant number, since it is smaller than the sum of its proper divisors (151060770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90636030 is a wasteful number, since it uses less digits than its factorization.

90636030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335705 (or 335699 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 90636030 is about 9520.2956886853. The cubic root of 90636030 is about 449.1936671459.

Adding to 90636030 its reverse (3063609), we get a palindrome (93699639).

The spelling of 90636030 in words is "ninety million, six hundred thirty-six thousand, thirty".