2054844138 has 16 divisors (see below), whose sum is σ = 4111494336. Its totient is φ = 684647040.

The previous prime is 2054844137. The next prime is 2054844149. The reversal of 2054844138 is 8314484502.

It is a junction number, because it is equal to n+sod(n) for n = 2054844096 and 2054844105.

It is not an unprimeable number, because it can be changed into a prime (2054844133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60231 + ... + 87962.

It is an arithmetic number, because the mean of its divisors is an integer number (256968396).

Almost surely, 2^2054844138 is an apocalyptic number.

2054844138 is an abundant number, since it is smaller than the sum of its proper divisors (2056650198).

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

2054844138 is a wasteful number, since it uses less digits than its factorization.

2054844138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150509.

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 2054844138 is about 45330.3886813250. The cubic root of 2054844138 is about 1271.3339030120. Note that the first 3 decimals are identical.

The spelling of 2054844138 in words is "two billion, fifty-four million, eight hundred forty-four thousand, one hundred thirty-eight".