42456398 has 8 divisors (see below), whose sum is σ = 63712440. Its totient is φ = 21218920.

The previous prime is 42456397. The next prime is 42456433. The reversal of 42456398 is 89365424.

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

It is a super-2 number, since 2×42456398² = 3605091462268808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42456397) 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, 5588 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (7964055).

Almost surely, 2^42456398 is an apocalyptic number.

42456398 is a deficient number, since it is larger than the sum of its proper divisors (21256042).

42456398 is a wasteful number, since it uses less digits than its factorization.

42456398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9282.

The product of its digits is 207360, while the sum is 41.

The square root of 42456398 is about 6515.8574263101. The cubic root of 42456398 is about 348.8572197233.

The spelling of 42456398 in words is "forty-two million, four hundred fifty-six thousand, three hundred ninety-eight".