2472643220 has 18 divisors (see below), whose sum is σ = 5193017802. Its totient is φ = 988968336.

The previous prime is 2472643207. The next prime is 2472643247. The reversal of 2472643220 is 223462742.

It can be written as a sum of positive squares in only one way, i.e., 1978114576 + 494528644 = 44476^2 + 22238^2 .

It is a super-2 number, since 2×2472643220² = 12227928986823936800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216821 + ... + 227939.

It is an arithmetic number, because the mean of its divisors is an integer number (288500989).

Almost surely, 2^2472643220 is an apocalyptic number.

2472643220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2472643220 is an abundant number, since it is smaller than the sum of its proper divisors (2720374582).

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

2472643220 is an frugal number, since it uses more digits than its factorization.

2472643220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22247 (or 11126 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 2472643220 is about 49725.6796836403. The cubic root of 2472643220 is about 1352.2401253232.

The spelling of 2472643220 in words is "two billion, four hundred seventy-two million, six hundred forty-three thousand, two hundred twenty".