1622686442 has 32 divisors (see below), whose sum is σ = 2686799808. Its totient is φ = 730267776.

The previous prime is 1622686391. The next prime is 1622686453. The reversal of 1622686442 is 2446862261.

It is a super-2 number, since 2×1622686442² = 5266222578101238728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1622686442.

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, 1064693 + ... + 1066215.

It is an arithmetic number, because the mean of its divisors is an integer number (83962494).

Almost surely, 2^1622686442 is an apocalyptic number.

1622686442 is a deficient number, since it is larger than the sum of its proper divisors (1064113366).

1622686442 is a wasteful number, since it uses less digits than its factorization.

1622686442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534.

The product of its digits is 221184, while the sum is 41.

The square root of 1622686442 is about 40282.5823650868. The cubic root of 1622686442 is about 1175.1091353588.

The spelling of 1622686442 in words is "one billion, six hundred twenty-two million, six hundred eighty-six thousand, four hundred forty-two".