442051051 has 32 divisors (see below), whose sum is σ = 520648128. Its totient is φ = 371589120.

The previous prime is 442051039. The next prime is 442051081. The reversal of 442051051 is 150150244.

It is a 17-Lehmer number, since φ(442051051) divides (442051051-1)¹⁷.

It is a cyclic number.

It is not a de Polignac number, because 442051051 - 2⁷ = 442050923 is a prime.

442051051 is a modest number, since divided by 51051 gives 442 as remainder.

It is not an unprimeable number, because it can be changed into a prime (442051081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1719915 + ... + 1720171.

It is an arithmetic number, because the mean of its divisors is an integer number (16270254).

Almost surely, 2^442051051 is an apocalyptic number.

442051051 is a deficient number, since it is larger than the sum of its proper divisors (78597077).

442051051 is a wasteful number, since it uses less digits than its factorization.

442051051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 442051051 is about 21025.0101307942. The cubic root of 442051051 is about 761.7704862150.

The spelling of 442051051 in words is "four hundred forty-two million, fifty-one thousand, fifty-one".