2421025444 has 12 divisors (see below), whose sum is σ = 4382891100. Its totient is φ = 1168770848.

The previous prime is 2421025433. The next prime is 2421025447. The reversal of 2421025444 is 4445201242.

It can be written as a sum of positive squares in 2 ways, for example, as 2019423844 + 401601600 = 44938^2 + 20040^2 .

It is a super-2 number, since 2×2421025444² = 11722728400990794272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2421025447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10435339 + ... + 10435570.

It is an arithmetic number, because the mean of its divisors is an integer number (365240925).

Almost surely, 2^2421025444 is an apocalyptic number.

It is an amenable number.

2421025444 is a deficient number, since it is larger than the sum of its proper divisors (1961865656).

2421025444 is a wasteful number, since it uses less digits than its factorization.

2421025444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20870942 (or 20870940 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 2421025444 is about 49203.9169579008. The cubic root of 2421025444 is about 1342.7642950808.

Adding to 2421025444 its reverse (4445201242), we get a palindrome (6866226686).

The spelling of 2421025444 in words is "two billion, four hundred twenty-one million, twenty-five thousand, four hundred forty-four".