2258727438 has 64 divisors (see below), whose sum is σ = 5009195520. Its totient is φ = 673296000.

The previous prime is 2258727421. The next prime is 2258727439. The reversal of 2258727438 is 8347278522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258727439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1112208 + ... + 1114236.

It is an arithmetic number, because the mean of its divisors is an integer number (78268680).

Almost surely, 2^2258727438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2258727438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2504597760).

2258727438 is an abundant number, since it is smaller than the sum of its proper divisors (2750468082).

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

2258727438 is a wasteful number, since it uses less digits than its factorization.

2258727438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313.

The product of its digits is 1505280, while the sum is 48.

The square root of 2258727438 is about 47526.0711399543. The cubic root of 2258727438 is about 1312.0627599706.

The spelling of 2258727438 in words is "two billion, two hundred fifty-eight million, seven hundred twenty-seven thousand, four hundred thirty-eight".