42397379 has 16 divisors (see below), whose sum is σ = 45845280. Its totient is φ = 39087360.

The previous prime is 42397361. The next prime is 42397387. The reversal of 42397379 is 97379324.

It is a cyclic number.

It is not a de Polignac number, because 42397379 - 2⁸ = 42397123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42397309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181847 + ... + 182079.

It is an arithmetic number, because the mean of its divisors is an integer number (2865330).

Almost surely, 2^42397379 is an apocalyptic number.

42397379 is a deficient number, since it is larger than the sum of its proper divisors (3447901).

42397379 is a wasteful number, since it uses less digits than its factorization.

42397379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its digits is 285768, while the sum is 44.

The square root of 42397379 is about 6511.3269768919. The cubic root of 42397379 is about 348.6954949656.

The spelling of 42397379 in words is "forty-two million, three hundred ninety-seven thousand, three hundred seventy-nine".