2544145320 has 64 divisors (see below), whose sum is σ = 7706574720. Its totient is φ = 671848704.

The previous prime is 2544145283. The next prime is 2544145327. The reversal of 2544145320 is 235414452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2544145327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90559 + ... + 115278.

It is an arithmetic number, because the mean of its divisors is an integer number (120415230).

Almost surely, 2^2544145320 is an apocalyptic number.

2544145320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2544145320 is an abundant number, since it is smaller than the sum of its proper divisors (5162429400).

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

2544145320 is a wasteful number, since it uses less digits than its factorization.

2544145320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205954 (or 205950 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2544145320 is about 50439.5214093076. The cubic root of 2544145320 is about 1365.1508319954.

Adding to 2544145320 its reverse (235414452), we get a palindrome (2779559772).

The spelling of 2544145320 in words is "two billion, five hundred forty-four million, one hundred forty-five thousand, three hundred twenty".