2558430 has 96 divisors (see below), whose sum is σ = 7907328. Its totient is φ = 561600.

The previous prime is 2558429. The next prime is 2558471. The reversal of 2558430 is 348552.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2558394 and 2558403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19465 + ... + 19595.

It is an arithmetic number, because the mean of its divisors is an integer number (82368).

2^2558430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2558430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3953664).

2558430 is an abundant number, since it is smaller than the sum of its proper divisors (5348898).

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

2558430 is a wasteful number, since it uses less digits than its factorization.

2558430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2558430 is about 1599.5092997541. The cubic root of 2558430 is about 136.7701047837.

The spelling of 2558430 in words is "two million, five hundred fifty-eight thousand, four hundred thirty".