4042432251 has 60 divisors (see below), whose sum is σ = 7148381856. Its totient is φ = 2261429280.

The previous prime is 4042432237. The next prime is 4042432283. The reversal of 4042432251 is 1522342404.

4042432251 is a `hidden beast` number, since 404 + 2 + 4 + 3 + 2 + 251 = 666.

It is not a de Polignac number, because 4042432251 - 2⁷ = 4042432123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4042432211) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 111550 + ... + 143276.

Almost surely, 2^4042432251 is an apocalyptic number.

4042432251 is a deficient number, since it is larger than the sum of its proper divisors (3105949605).

4042432251 is a wasteful number, since it uses less digits than its factorization.

4042432251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31774 (or 31754 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4042432251 is about 63580.1246538570. The cubic root of 4042432251 is about 1592.9944034617.

Adding to 4042432251 its reverse (1522342404), we get a palindrome (5564774655).

The spelling of 4042432251 in words is "four billion, forty-two million, four hundred thirty-two thousand, two hundred fifty-one".