1442221634 has 32 divisors (see below), whose sum is σ = 2542928256. Its totient is φ = 600606720.

The previous prime is 1442221589. The next prime is 1442221667. The reversal of 1442221634 is 4361222441.

It is a junction number, because it is equal to n+sod(n) for n = 1442221597 and 1442221606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112514 + ... + 124674.

It is an arithmetic number, because the mean of its divisors is an integer number (79466508).

Almost surely, 2^1442221634 is an apocalyptic number.

1442221634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1442221634 is a deficient number, since it is larger than the sum of its proper divisors (1100706622).

1442221634 is a wasteful number, since it uses less digits than its factorization.

1442221634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12410.

The product of its digits is 9216, while the sum is 29.

The square root of 1442221634 is about 37976.5932384673. The cubic root of 1442221634 is about 1129.8236689382.

The spelling of 1442221634 in words is "one billion, four hundred forty-two million, two hundred twenty-one thousand, six hundred thirty-four".