42574646 has 16 divisors (see below), whose sum is σ = 65832480. Its totient is φ = 20637120.

The previous prime is 42574627. The next prime is 42574667. The reversal of 42574646 is 64647524.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12140 + ... + 15248.

It is an arithmetic number, because the mean of its divisors is an integer number (4114530).

Almost surely, 2^42574646 is an apocalyptic number.

42574646 is a deficient number, since it is larger than the sum of its proper divisors (23257834).

42574646 is a wasteful number, since it uses less digits than its factorization.

42574646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319.

The product of its digits is 161280, while the sum is 38.

The square root of 42574646 is about 6524.9249804117. The cubic root of 42574646 is about 349.1807942771.

The spelling of 42574646 in words is "forty-two million, five hundred seventy-four thousand, six hundred forty-six".