42456506 has 8 divisors (see below), whose sum is σ = 63772704. Its totient is φ = 21198940.

The previous prime is 42456503. The next prime is 42456511. The reversal of 42456506 is 60565424.

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

It is not an unprimeable number, because it can be changed into a prime (42456503) 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, 12800 + ... + 15771.

It is an arithmetic number, because the mean of its divisors is an integer number (7971588).

Almost surely, 2^42456506 is an apocalyptic number.

42456506 is a deficient number, since it is larger than the sum of its proper divisors (21316198).

42456506 is a wasteful number, since it uses less digits than its factorization.

42456506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29316.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 42456506 is about 6515.8657137789. The cubic root of 42456506 is about 348.8575155291.

The spelling of 42456506 in words is "forty-two million, four hundred fifty-six thousand, five hundred six".