442736013 has 8 divisors (see below), whose sum is σ = 592416576. Its totient is φ = 294106400.

The previous prime is 442736009. The next prime is 442736023. The reversal of 442736013 is 310637244.

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

It is a cyclic number.

It is not a de Polignac number, because 442736013 - 2² = 442736009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442736003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261753 + ... + 263438.

It is an arithmetic number, because the mean of its divisors is an integer number (74052072).

Almost surely, 2^442736013 is an apocalyptic number.

It is an amenable number.

442736013 is a deficient number, since it is larger than the sum of its proper divisors (149680563).

442736013 is a wasteful number, since it uses less digits than its factorization.

442736013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525475.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 442736013 is about 21041.2930448678. The cubic root of 442736013 is about 762.1637398626.

The spelling of 442736013 in words is "four hundred forty-two million, seven hundred thirty-six thousand, thirteen".