42619321 has 4 divisors (see below), whose sum is σ = 43610512. Its totient is φ = 41628132.

The previous prime is 42619319. The next prime is 42619333. The reversal of 42619321 is 12391624.

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 42619321 - 2¹ = 42619319 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 42619321.

It is not an unprimeable number, because it can be changed into a prime (42619021) 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, 495531 + ... + 495616.

It is an arithmetic number, because the mean of its divisors is an integer number (10902628).

Almost surely, 2^42619321 is an apocalyptic number.

It is an amenable number.

42619321 is a deficient number, since it is larger than the sum of its proper divisors (991191).

42619321 is an equidigital number, since it uses as much as digits as its factorization.

42619321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991190.

The product of its digits is 2592, while the sum is 28.

The square root of 42619321 is about 6528.3474938150. The cubic root of 42619321 is about 349.3028872771.

The spelling of 42619321 in words is "forty-two million, six hundred nineteen thousand, three hundred twenty-one".