442130613 has 4 divisors (see below), whose sum is σ = 589507488. Its totient is φ = 294753740.

The previous prime is 442130599. The next prime is 442130621. The reversal of 442130613 is 316031244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442130613 - 2⁴ = 442130597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442130113) 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, 73688433 + ... + 73688438.

It is an arithmetic number, because the mean of its divisors is an integer number (147376872).

Almost surely, 2^442130613 is an apocalyptic number.

It is an amenable number.

442130613 is a deficient number, since it is larger than the sum of its proper divisors (147376875).

442130613 is a wasteful number, since it uses less digits than its factorization.

442130613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147376874.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 442130613 is about 21026.9021256104. The cubic root of 442130613 is about 761.8161855729.

Adding to 442130613 its reverse (316031244), we get a palindrome (758161857).

The spelling of 442130613 in words is "four hundred forty-two million, one hundred thirty thousand, six hundred thirteen".