90300620 has 24 divisors (see below), whose sum is σ = 190242864. Its totient is φ = 36003776.

The previous prime is 90300611. The next prime is 90300629. The reversal of 90300620 is 2600309.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90300611) and next prime (90300629).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 90300592 and 90300601.

It is not an unprimeable number, because it can be changed into a prime (90300629) 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, 782 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (7926786).

Almost surely, 2^90300620 is an apocalyptic number.

It is an amenable number.

90300620 is an abundant number, since it is smaller than the sum of its proper divisors (99942244).

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

90300620 is a wasteful number, since it uses less digits than its factorization.

90300620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14569 (or 14567 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 90300620 is about 9502.6638370512. The cubic root of 90300620 is about 448.6388830594.

Adding to 90300620 its reverse (2600309), we get a palindrome (92900929).

The spelling of 90300620 in words is "ninety million, three hundred thousand, six hundred twenty".