2545233438 has 64 divisors (see below), whose sum is σ = 5888982528. Its totient is φ = 724792320.

The previous prime is 2545233419. The next prime is 2545233451. The reversal of 2545233438 is 8343325452.

It is a junction number, because it is equal to n+sod(n) for n = 2545233396 and 2545233405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 960231 + ... + 962877.

It is an arithmetic number, because the mean of its divisors is an integer number (92015352).

Almost surely, 2^2545233438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545233438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2944491264).

2545233438 is an abundant number, since it is smaller than the sum of its proper divisors (3343749090).

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

2545233438 is a wasteful number, since it uses less digits than its factorization.

2545233438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537.

The product of its digits is 345600, while the sum is 39.

The square root of 2545233438 is about 50450.3066194845. The cubic root of 2545233438 is about 1365.3454269424.

The spelling of 2545233438 in words is "two billion, five hundred forty-five million, two hundred thirty-three thousand, four hundred thirty-eight".