42644662 has 4 divisors (see below), whose sum is σ = 63966996. Its totient is φ = 21322330.

The previous prime is 42644639. The next prime is 42644663. The reversal of 42644662 is 26644624.

42644662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×42644662³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661164 + ... + 10661167.

It is an arithmetic number, because the mean of its divisors is an integer number (15991749).

Almost surely, 2^42644662 is an apocalyptic number.

42644662 is a deficient number, since it is larger than the sum of its proper divisors (21322334).

42644662 is a wasteful number, since it uses less digits than its factorization.

42644662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21322333.

The product of its digits is 55296, while the sum is 34.

The square root of 42644662 is about 6530.2880487770. The cubic root of 42644662 is about 349.3721041679.

The spelling of 42644662 in words is "forty-two million, six hundred forty-four thousand, six hundred sixty-two".