442042293 has 32 divisors (see below), whose sum is σ = 754698240. Its totient is φ = 223421760.

The previous prime is 442042291. The next prime is 442042301. The reversal of 442042293 is 392240244.

It is not a de Polignac number, because 442042293 - 2¹ = 442042291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442042293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442042291) 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, 17313 + ... + 34406.

It is an arithmetic number, because the mean of its divisors is an integer number (23584320).

Almost surely, 2^442042293 is an apocalyptic number.

It is an amenable number.

442042293 is a deficient number, since it is larger than the sum of its proper divisors (312655947).

442042293 is a wasteful number, since it uses less digits than its factorization.

442042293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51777.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 442042293 is about 21024.8018540009. The cubic root of 442042293 is about 761.7654554009.

The spelling of 442042293 in words is "four hundred forty-two million, forty-two thousand, two hundred ninety-three".