1622105990 has 32 divisors (see below), whose sum is σ = 2993163840. Its totient is φ = 632738304.

The previous prime is 1622105963. The next prime is 1622106007. The reversal of 1622105990 is 995012261.

It is a self number, because there is not a number n which added to its sum of digits gives 1622105990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52487 + ... + 77453.

It is an arithmetic number, because the mean of its divisors is an integer number (93536370).

Almost surely, 2^1622105990 is an apocalyptic number.

1622105990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1622105990 is a deficient number, since it is larger than the sum of its proper divisors (1371057850).

1622105990 is a wasteful number, since it uses less digits than its factorization.

1622105990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25136.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1622105990 is about 40275.3769690614. The cubic root of 1622105990 is about 1174.9690023511.

The spelling of 1622105990 in words is "one billion, six hundred twenty-two million, one hundred five thousand, nine hundred ninety".