42457469 has 4 divisors (see below), whose sum is σ = 43444896. Its totient is φ = 41470044.

The previous prime is 42457453. The next prime is 42457477. The reversal of 42457469 is 96475424.

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 42457469 - 2⁴ = 42457453 is a prime.

It is a super-2 number, since 2×42457469² = 3605273347771922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42457439) 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, 493649 + ... + 493734.

It is an arithmetic number, because the mean of its divisors is an integer number (10861224).

Almost surely, 2^42457469 is an apocalyptic number.

It is an amenable number.

42457469 is a deficient number, since it is larger than the sum of its proper divisors (987427).

42457469 is an equidigital number, since it uses as much as digits as its factorization.

42457469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987426.

The product of its digits is 241920, while the sum is 41.

The square root of 42457469 is about 6515.9396099105. The cubic root of 42457469 is about 348.8601531087.

The spelling of 42457469 in words is "forty-two million, four hundred fifty-seven thousand, four hundred sixty-nine".