2258435140 has 48 divisors (see below), whose sum is σ = 5119974720. Its totient is φ = 831853440.

The previous prime is 2258435131. The next prime is 2258435143. The reversal of 2258435140 is 415348522.

It is a junction number, because it is equal to n+sod(n) for n = 2258435096 and 2258435105.

It is not an unprimeable number, because it can be changed into a prime (2258435143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98575 + ... + 119305.

It is an arithmetic number, because the mean of its divisors is an integer number (106666140).

Almost surely, 2^2258435140 is an apocalyptic number.

2258435140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2258435140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2559987360).

2258435140 is an abundant number, since it is smaller than the sum of its proper divisors (2861539580).

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

2258435140 is a wasteful number, since it uses less digits than its factorization.

2258435140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21172 (or 21170 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 2258435140 is about 47522.9959072447. The cubic root of 2258435140 is about 1312.0061602737.

The spelling of 2258435140 in words is "two billion, two hundred fifty-eight million, four hundred thirty-five thousand, one hundred forty".