1622073538 has 8 divisors (see below), whose sum is σ = 2433779532. Its totient is φ = 810813696.

The previous prime is 1622073527. The next prime is 1622073569. The reversal of 1622073538 is 8353702261.

It can be written as a sum of positive squares in 2 ways, for example, as 1492045129 + 130028409 = 38627^2 + 11403^2 .

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

It is a super-2 number, since 2×1622073538² = 5262245125359674888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1622073497 and 1622073506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102295 + ... + 117082.

Almost surely, 2^1622073538 is an apocalyptic number.

1622073538 is a deficient number, since it is larger than the sum of its proper divisors (811705994).

1622073538 is a wasteful number, since it uses less digits than its factorization.

1622073538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223076.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1622073538 is about 40274.9740906186. The cubic root of 1622073538 is about 1174.9611667866.

Adding to 1622073538 its reverse (8353702261), we get a palindrome (9975775799).

The spelling of 1622073538 in words is "one billion, six hundred twenty-two million, seventy-three thousand, five hundred thirty-eight".