3924542149 has 4 divisors (see below), whose sum is σ = 4281318720. Its totient is φ = 3567765580.

The previous prime is 3924542143. The next prime is 3924542161. The reversal of 3924542149 is 9412454293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9412454293 = 11 ⋅855677663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3924542149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3924542143) 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, 178388269 + ... + 178388290.

It is an arithmetic number, because the mean of its divisors is an integer number (1070329680).

Almost surely, 2^3924542149 is an apocalyptic number.

It is an amenable number.

3924542149 is a deficient number, since it is larger than the sum of its proper divisors (356776571).

3924542149 is a wasteful number, since it uses less digits than its factorization.

3924542149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356776570.

The product of its digits is 311040, while the sum is 43.

The square root of 3924542149 is about 62646.1662753596. The cubic root of 3924542149 is about 1577.3557958503.

The spelling of 3924542149 in words is "three billion, nine hundred twenty-four million, five hundred forty-two thousand, one hundred forty-nine".