2258420920 has 32 divisors (see below), whose sum is σ = 5807368800. Its totient is φ = 774315648.

The previous prime is 2258420891. The next prime is 2258420963. The reversal of 2258420920 is 290248522.

It is a congruent number.

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, 4032615 + ... + 4033174.

It is an arithmetic number, because the mean of its divisors is an integer number (181480275).

Almost surely, 2^2258420920 is an apocalyptic number.

2258420920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2258420920 is an abundant number, since it is smaller than the sum of its proper divisors (3548947880).

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

2258420920 is a wasteful number, since it uses less digits than its factorization.

2258420920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065807 (or 8065803 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 2258420920 is about 47522.8462952294. The cubic root of 2258420920 is about 1312.0034066315.

The spelling of 2258420920 in words is "two billion, two hundred fifty-eight million, four hundred twenty thousand, nine hundred twenty".