8228472720 has 80 divisors (see below), whose sum is σ = 27470450112. Its totient is φ = 2025469440.

The previous prime is 8228472697. The next prime is 8228472743. The reversal of 8228472720 is 272748228.

It is an interprime number because it is at equal distance from previous prime (8228472697) and next prime (8228472743).

It is a tau number, because it is divible by the number of its divisors (80).

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, 1315546 + ... + 1321785.

Almost surely, 2^8228472720 is an apocalyptic number.

8228472720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8228472720 is an abundant number, since it is smaller than the sum of its proper divisors (19241977392).

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

8228472720 is a wasteful number, since it uses less digits than its factorization.

8228472720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637360 (or 2637354 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 8228472720 is about 90710.9294407240. The cubic root of 8228472720 is about 2018.8609661835.

The spelling of 8228472720 in words is "eight billion, two hundred twenty-eight million, four hundred seventy-two thousand, seven hundred twenty".