442356051 has 4 divisors (see below), whose sum is σ = 589808072. Its totient is φ = 294904032.

The previous prime is 442356041. The next prime is 442356091. The reversal of 442356051 is 150653244.

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

It is a de Polignac number, because none of the positive numbers 2^k-442356051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442356041) 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, 73726006 + ... + 73726011.

It is an arithmetic number, because the mean of its divisors is an integer number (147452018).

Almost surely, 2^442356051 is an apocalyptic number.

442356051 is a deficient number, since it is larger than the sum of its proper divisors (147452021).

442356051 is a wasteful number, since it uses less digits than its factorization.

442356051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147452020.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 442356051 is about 21032.2621465215. The cubic root of 442356051 is about 761.9456444029.

The spelling of 442356051 in words is "four hundred forty-two million, three hundred fifty-six thousand, fifty-one".