2544432918 has 16 divisors (see below), whose sum is σ = 5356701120. Its totient is φ = 803505096.

The previous prime is 2544432883. The next prime is 2544432949. The reversal of 2544432918 is 8192344452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2544432918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11159680 + ... + 11159907.

It is an arithmetic number, because the mean of its divisors is an integer number (334793820).

Almost surely, 2^2544432918 is an apocalyptic number.

2544432918 is an abundant number, since it is smaller than the sum of its proper divisors (2812268202).

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

2544432918 is a wasteful number, since it uses less digits than its factorization.

2544432918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22319611.

The product of its digits is 276480, while the sum is 42.

The square root of 2544432918 is about 50442.3722479425. The cubic root of 2544432918 is about 1365.2022703380.

The spelling of 2544432918 in words is "two billion, five hundred forty-four million, four hundred thirty-two thousand, nine hundred eighteen".