9090008420 has 24 divisors (see below), whose sum is σ = 19110102144. Its totient is φ = 3631987296.

The previous prime is 9090008353. The next prime is 9090008437. The reversal of 9090008420 is 248000909.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232412 + ... + 268691.

It is an arithmetic number, because the mean of its divisors is an integer number (796254256).

Almost surely, 2^9090008420 is an apocalyptic number.

It is an amenable number.

9090008420 is an abundant number, since it is smaller than the sum of its proper divisors (10020093724).

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

9090008420 is a wasteful number, since it uses less digits than its factorization.

9090008420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502019 (or 502017 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 9090008420 is about 95341.5356494744. The cubic root of 9090008420 is about 2086.9950956924.

The spelling of 9090008420 in words is "nine billion, ninety million, eight thousand, four hundred twenty".