442271847 has 16 divisors (see below), whose sum is σ = 634970880. Its totient is φ = 272798592.

The previous prime is 442271839. The next prime is 442271861. The reversal of 442271847 is 748172244.

It is a happy number.

It is not a de Polignac number, because 442271847 - 2³ = 442271839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442271827) 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, 70483 + ... + 76500.

It is an arithmetic number, because the mean of its divisors is an integer number (39685680).

Almost surely, 2^442271847 is an apocalyptic number.

442271847 is a deficient number, since it is larger than the sum of its proper divisors (192699033).

442271847 is a wasteful number, since it uses less digits than its factorization.

442271847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147062.

The product of its digits is 100352, while the sum is 39.

The square root of 442271847 is about 21030.2602694308. The cubic root of 442271847 is about 761.8972950079.

The spelling of 442271847 in words is "four hundred forty-two million, two hundred seventy-one thousand, eight hundred forty-seven".