42642446 has 32 divisors (see below), whose sum is σ = 81388800. Its totient is φ = 16611000.

The previous prime is 42642401. The next prime is 42642473. The reversal of 42642446 is 64424624.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4721 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (2543400).

Almost surely, 2^42642446 is an apocalyptic number.

42642446 is a deficient number, since it is larger than the sum of its proper divisors (38746354).

42642446 is a wasteful number, since it uses less digits than its factorization.

42642446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5671 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 42642446 is about 6530.1183756499. The cubic root of 42642446 is about 349.3660524375.

The spelling of 42642446 in words is "forty-two million, six hundred forty-two thousand, four hundred forty-six".