2090904228 has 72 divisors (see below), whose sum is σ = 6168943872. Its totient is φ = 584687232.

The previous prime is 2090904209. The next prime is 2090904253. The reversal of 2090904228 is 8224090902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2090904192 and 2090904201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76425 + ... + 100112.

It is an arithmetic number, because the mean of its divisors is an integer number (85679776).

Almost surely, 2^2090904228 is an apocalyptic number.

2090904228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2090904228 is an abundant number, since it is smaller than the sum of its proper divisors (4078039644).

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

2090904228 is a wasteful number, since it uses less digits than its factorization.

2090904228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176601 (or 176596 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2090904228 is about 45726.4062440949. The cubic root of 2090904228 is about 1278.7276231525.

The spelling of 2090904228 in words is "two billion, ninety million, nine hundred four thousand, two hundred twenty-eight".