3851242144 has 24 divisors (see below), whose sum is σ = 7606376820. Its totient is φ = 1919463936.

The previous prime is 3851242141. The next prime is 3851242147. The reversal of 3851242144 is 4412421583.

It is an interprime number because it is at equal distance from previous prime (3851242141) and next prime (3851242147).

It can be written as a sum of positive squares in 2 ways, for example, as 2438384400 + 1412857744 = 49380^2 + 37588^2 .

It is not an unprimeable number, because it can be changed into a prime (3851242141) 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, 182239 + ... + 202270.

Almost surely, 2^3851242144 is an apocalyptic number.

It is an amenable number.

3851242144 is a deficient number, since it is larger than the sum of its proper divisors (3755134676).

3851242144 is a wasteful number, since it uses less digits than its factorization.

3851242144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384832 (or 384824 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 3851242144 is about 62058.3769043310. The cubic root of 3851242144 is about 1567.4737448533.

It can be divided in two parts, 38512 and 42144, that added together give a square (80656 = 284²).

The spelling of 3851242144 in words is "three billion, eight hundred fifty-one million, two hundred forty-two thousand, one hundred forty-four".