442253534 has 8 divisors (see below), whose sum is σ = 671777760. Its totient is φ = 218327616.

The previous prime is 442253531. The next prime is 442253551. The reversal of 442253534 is 435352244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 442253534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442253531) 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, 1399379 + ... + 1399694.

It is an arithmetic number, because the mean of its divisors is an integer number (83972220).

Almost surely, 2^442253534 is an apocalyptic number.

442253534 is a deficient number, since it is larger than the sum of its proper divisors (229524226).

442253534 is a wasteful number, since it uses less digits than its factorization.

442253534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799154.

The product of its digits is 57600, while the sum is 32.

The square root of 442253534 is about 21029.8248685052. The cubic root of 442253534 is about 761.8867789886.

The spelling of 442253534 in words is "four hundred forty-two million, two hundred fifty-three thousand, five hundred thirty-four".