2420321280 has 704 divisors, whose sum is σ = 9508036608. Its totient is φ = 519045120.

The previous prime is 2420321279. The next prime is 2420321291. The reversal of 2420321280 is 821230242.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2420321280.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78074865 + ... + 78074895.

Almost surely, 2^2420321280 is an apocalyptic number.

2420321280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2420321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4754018304).

2420321280 is an abundant number, since it is smaller than the sum of its proper divisors (7087715328).

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

2420321280 is a wasteful number, since it uses less digits than its factorization.

2420321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2420321280 is about 49196.7608689840. The cubic root of 2420321280 is about 1342.6340998414.

The spelling of 2420321280 in words is "two billion, four hundred twenty million, three hundred twenty-one thousand, two hundred eighty".