2428121872 has 160 divisors (see below), whose sum is σ = 5685350400. Its totient is φ = 992217600.

The previous prime is 2428121863. The next prime is 2428121879. The reversal of 2428121872 is 2781218242.

It is not an unprimeable number, because it can be changed into a prime (2428121879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6115978 + ... + 6116374.

It is an arithmetic number, because the mean of its divisors is an integer number (35533440).

Almost surely, 2^2428121872 is an apocalyptic number.

2428121872 is a gapful number since it is divisible by the number (22) 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 2428121872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2842675200).

2428121872 is an abundant number, since it is smaller than the sum of its proper divisors (3257228528).

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

2428121872 is a wasteful number, since it uses less digits than its factorization.

2428121872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its digits is 28672, while the sum is 37.

The square root of 2428121872 is about 49275.9766214735. The cubic root of 2428121872 is about 1344.0749704259.

The spelling of 2428121872 in words is "two billion, four hundred twenty-eight million, one hundred twenty-one thousand, eight hundred seventy-two".