1622045893 has 8 divisors (see below), whose sum is σ = 1807054200. Its totient is φ = 1445642688.

The previous prime is 1622045879. The next prime is 1622045897. The reversal of 1622045893 is 3985402261.

It can be written as a sum of positive squares in 4 ways, for example, as 12271009 + 1609774884 = 3503^2 + 40122^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1622045893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622045897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150878 + ... + 2151631.

It is an arithmetic number, because the mean of its divisors is an integer number (225881775).

Almost surely, 2^1622045893 is an apocalyptic number.

1622045893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1622045893 is a deficient number, since it is larger than the sum of its proper divisors (185008307).

1622045893 is a wasteful number, since it uses less digits than its factorization.

1622045893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302551.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1622045893 is about 40274.6308859560. The cubic root of 1622045893 is about 1174.9544917941.

The spelling of 1622045893 in words is "one billion, six hundred twenty-two million, forty-five thousand, eight hundred ninety-three".