3924145449 has 81 divisors (see below), whose sum is σ = 7003537047. Its totient is φ = 2110818528.

The previous prime is 3924145417. The next prime is 3924145453. The reversal of 3924145449 is 9445414293.

The square root of 3924145449 is 62643.

It is a perfect power (a square), and thus also a powerful number.

3924145449 is a `hidden beast` number, since 3 + 92 + 4 + 14 + 544 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1150227225 + 2773918224 = 33915^2 + 52668^2 .

It is not a de Polignac number, because 3924145449 - 2⁵ = 3924145417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3924144449) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 24994479 + ... + 24994635.

Almost surely, 2^3924145449 is an apocalyptic number.

3924145449 is the 62643-rd square number.

3924145449 is the 31322-nd centered octagonal number.

It is an amenable number.

3924145449 is a deficient number, since it is larger than the sum of its proper divisors (3079391598).

3924145449 is a wasteful number, since it uses less digits than its factorization.

3924145449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 186 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The cubic root of 3924145449 is about 1577.3026467095.

The spelling of 3924145449 in words is "three billion, nine hundred twenty-four million, one hundred forty-five thousand, four hundred forty-nine".