90354620 has 12 divisors (see below), whose sum is σ = 189744744. Its totient is φ = 36141840.

The previous prime is 90354601. The next prime is 90354623. The reversal of 90354620 is 2645309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90354623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258846 + ... + 2258885.

It is an arithmetic number, because the mean of its divisors is an integer number (15812062).

Almost surely, 2^90354620 is an apocalyptic number.

It is an amenable number.

90354620 is an abundant number, since it is smaller than the sum of its proper divisors (99390124).

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

90354620 is a wasteful number, since it uses less digits than its factorization.

90354620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517740 (or 4517738 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 90354620 is about 9505.5047209499. The cubic root of 90354620 is about 448.7282943027.

Adding to 90354620 its reverse (2645309), we get a palindrome (92999929).

The spelling of 90354620 in words is "ninety million, three hundred fifty-four thousand, six hundred twenty".