2399222880 has 72 divisors (see below), whose sum is σ = 8187352992. Its totient is φ = 639792384.

The previous prime is 2399222849. The next prime is 2399222887. The reversal of 2399222880 is 882229932.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399222887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 831624 + ... + 834503.

It is an arithmetic number, because the mean of its divisors is an integer number (113713236).

Almost surely, 2^2399222880 is an apocalyptic number.

2399222880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2399222880 is an abundant number, since it is smaller than the sum of its proper divisors (5788130112).

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

2399222880 is a wasteful number, since it uses less digits than its factorization.

2399222880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666148 (or 1666137 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2399222880 is about 48981.8627657218. The cubic root of 2399222880 is about 1338.7213763048.

The spelling of 2399222880 in words is "two billion, three hundred ninety-nine million, two hundred twenty-two thousand, eight hundred eighty".