2421497844 has 18 divisors (see below), whose sum is σ = 6121008530. Its totient is φ = 807165936.

The previous prime is 2421497831. The next prime is 2421497863. The reversal of 2421497844 is 4487941242.

2421497844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1251036900 + 1170460944 = 35370^2 + 34212^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2421497844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33631879 + ... + 33631950.

Almost surely, 2^2421497844 is an apocalyptic number.

It is an amenable number.

2421497844 is an abundant number, since it is smaller than the sum of its proper divisors (3699510686).

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

2421497844 is a wasteful number, since it uses less digits than its factorization.

2421497844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67263839 (or 67263834 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2421497844 is about 49208.7171545855. The cubic root of 2421497844 is about 1342.8516245500.

The spelling of 2421497844 in words is "two billion, four hundred twenty-one million, four hundred ninety-seven thousand, eight hundred forty-four".