20620034 has 8 divisors (see below), whose sum is σ = 31063500. Its totient is φ = 10265536.

The previous prime is 20620003. The next prime is 20620037. The reversal of 20620034 is 43002602.

It can be written as a sum of positive squares in 2 ways, for example, as 15976009 + 4644025 = 3997^2 + 2155^2 .

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

It is a super-2 number, since 2×20620034² = 850371604322312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20619994 and 20620021.

It is not an unprimeable number, because it can be changed into a prime (20620037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21659 + ... + 22590.

Almost surely, 2^20620034 is an apocalyptic number.

20620034 is a deficient number, since it is larger than the sum of its proper divisors (10443466).

20620034 is a wasteful number, since it uses less digits than its factorization.

20620034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44484.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20620034 is about 4540.9287596262. The cubic root of 20620034 is about 274.2183157140.

Adding to 20620034 its reverse (43002602), we get a palindrome (63622636).

The spelling of 20620034 in words is "twenty million, six hundred twenty thousand, thirty-four".