1018125444 has 48 divisors (see below), whose sum is σ = 2874711168. Its totient is φ = 273781248.

The previous prime is 1018125419. The next prime is 1018125481. The reversal of 1018125444 is 4445218101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355059 + ... + 357914.

It is an arithmetic number, because the mean of its divisors is an integer number (59889816).

Almost surely, 2^1018125444 is an apocalyptic number.

1018125444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1018125444 is an abundant number, since it is smaller than the sum of its proper divisors (1856585724).

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

1018125444 is a wasteful number, since it uses less digits than its factorization.

1018125444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713004 (or 713002 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 1018125444 is about 31908.0780367605. The cubic root of 1018125444 is about 1006.0056743379.

The spelling of 1018125444 in words is "one billion, eighteen million, one hundred twenty-five thousand, four hundred forty-four".