2538231894 has 48 divisors (see below), whose sum is σ = 6161622480. Its totient is φ = 748370880.

The previous prime is 2538231893. The next prime is 2538231923. The reversal of 2538231894 is 4981328352.

2538231894 is a `hidden beast` number, since 2 + 538 + 2 + 31 + 89 + 4 = 666.

It is a super-2 number, since 2×2538231894² = 12885242295437654472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538231893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165909 + ... + 180560.

It is an arithmetic number, because the mean of its divisors is an integer number (128367135).

Almost surely, 2^2538231894 is an apocalyptic number.

2538231894 is an abundant number, since it is smaller than the sum of its proper divisors (3623390586).

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

2538231894 is a wasteful number, since it uses less digits than its factorization.

2538231894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346525 (or 346522 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2538231894 is about 50380.8683331282. The cubic root of 2538231894 is about 1364.0923257595.

It can be divided in two parts, 2538 and 231894, that added together give a palindrome (234432).

The spelling of 2538231894 in words is "two billion, five hundred thirty-eight million, two hundred thirty-one thousand, eight hundred ninety-four".