442715091 has 16 divisors (see below), whose sum is σ = 726507264. Its totient is φ = 233519904.

The previous prime is 442715083. The next prime is 442715107. The reversal of 442715091 is 190517244.

It is a happy number.

It is not a de Polignac number, because 442715091 - 2³ = 442715083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442715041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810561 + ... + 811106.

It is an arithmetic number, because the mean of its divisors is an integer number (45406704).

Almost surely, 2^442715091 is an apocalyptic number.

442715091 is a deficient number, since it is larger than the sum of its proper divisors (283792173).

442715091 is a wasteful number, since it uses less digits than its factorization.

442715091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621690.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 442715091 is about 21040.7958737306. The cubic root of 442715091 is about 762.1517340318.

The spelling of 442715091 in words is "four hundred forty-two million, seven hundred fifteen thousand, ninety-one".