42457299 has 8 divisors (see below), whose sum is σ = 56819712. Its totient is φ = 28199880.

The previous prime is 42457277. The next prime is 42457301. The reversal of 42457299 is 99275424.

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

It is not a de Polignac number, because 42457299 - 2⁸ = 42457043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42457299.

It is not an unprimeable number, because it can be changed into a prime (42459299) 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, 25299 + ... + 26924.

It is an arithmetic number, because the mean of its divisors is an integer number (7102464).

Almost surely, 2^42457299 is an apocalyptic number.

42457299 is a deficient number, since it is larger than the sum of its proper divisors (14362413).

42457299 is a wasteful number, since it uses less digits than its factorization.

42457299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52497.

The product of its digits is 181440, while the sum is 42.

The square root of 42457299 is about 6515.9265649637. The cubic root of 42457299 is about 348.8596874953.

The spelling of 42457299 in words is "forty-two million, four hundred fifty-seven thousand, two hundred ninety-nine".