90800420 has 24 divisors (see below), whose sum is σ = 191038848. Its totient is φ = 36252000.

The previous prime is 90800419. The next prime is 90800429. The reversal of 90800420 is 2400809.

It is not an unprimeable number, because it can be changed into a prime (90800429) 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, 7445 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (7959952).

Almost surely, 2^90800420 is an apocalyptic number.

It is an amenable number.

90800420 is an abundant number, since it is smaller than the sum of its proper divisors (100238428).

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

90800420 is a wasteful number, since it uses less digits than its factorization.

90800420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531 (or 8529 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 90800420 is about 9528.9254378445. The cubic root of 90800420 is about 449.4650763120.

The spelling of 90800420 in words is "ninety million, eight hundred thousand, four hundred twenty".