1622289894 has 16 divisors (see below), whose sum is σ = 3293007168. Its totient is φ = 532692072.

The previous prime is 1622289883. The next prime is 1622289913. The reversal of 1622289894 is 4989822261.

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, 2017372 + ... + 2018175.

It is an arithmetic number, because the mean of its divisors is an integer number (205812948).

Almost surely, 2^1622289894 is an apocalyptic number.

1622289894 is an abundant number, since it is smaller than the sum of its proper divisors (1670717274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1622289894 is a wasteful number, since it uses less digits than its factorization.

1622289894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035619.

The product of its digits is 995328, while the sum is 51.

The square root of 1622289894 is about 40277.6599866477. The cubic root of 1622289894 is about 1175.0134041628.

The spelling of 1622289894 in words is "one billion, six hundred twenty-two million, two hundred eighty-nine thousand, eight hundred ninety-four".