442529147 has 4 divisors (see below), whose sum is σ = 443925456. Its totient is φ = 441132840.

The previous prime is 442529137. The next prime is 442529167. The reversal of 442529147 is 741925244.

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 442529147 - 2²⁸ = 174093691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442529147.

It is not an unprimeable number, because it can be changed into a prime (442529137) 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, 697679 + ... + 698312.

It is an arithmetic number, because the mean of its divisors is an integer number (110981364).

Almost surely, 2^442529147 is an apocalyptic number.

442529147 is a deficient number, since it is larger than the sum of its proper divisors (1396309).

442529147 is a wasteful number, since it uses less digits than its factorization.

442529147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396308.

The product of its digits is 80640, while the sum is 38.

The square root of 442529147 is about 21036.3767555157. The cubic root of 442529147 is about 762.0450157455.

The spelling of 442529147 in words is "four hundred forty-two million, five hundred twenty-nine thousand, one hundred forty-seven".