442431051 has 4 divisors (see below), whose sum is σ = 589908072. Its totient is φ = 294954032.

The previous prime is 442431049. The next prime is 442431061. The reversal of 442431051 is 150134244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442431051 - 2¹ = 442431049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442431061) 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, 73738506 + ... + 73738511.

It is an arithmetic number, because the mean of its divisors is an integer number (147477018).

Almost surely, 2^442431051 is an apocalyptic number.

442431051 is a deficient number, since it is larger than the sum of its proper divisors (147477021).

442431051 is a wasteful number, since it uses less digits than its factorization.

442431051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147477020.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 442431051 is about 21034.0450460676. The cubic root of 442431051 is about 761.9887037544.

Adding to 442431051 its reverse (150134244), we get a palindrome (592565295).

The spelling of 442431051 in words is "four hundred forty-two million, four hundred thirty-one thousand, fifty-one".