20634034 has 32 divisors (see below), whose sum is σ = 33417216. Its totient is φ = 9538560.

The previous prime is 20634017. The next prime is 20634037. The reversal of 20634034 is 43043602.

It is a super-2 number, since 2×20634034² = 851526718226312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20633996 and 20634014.

It is not an unprimeable number, because it can be changed into a prime (20634037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212674 + ... + 212770.

It is an arithmetic number, because the mean of its divisors is an integer number (1044288).

Almost surely, 2^20634034 is an apocalyptic number.

20634034 is a deficient number, since it is larger than the sum of its proper divisors (12783182).

20634034 is a wasteful number, since it uses less digits than its factorization.

20634034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 20634034 is about 4542.4700329226. The cubic root of 20634034 is about 274.2803619729.

Adding to 20634034 its reverse (43043602), we get a palindrome (63677636).

The spelling of 20634034 in words is "twenty million, six hundred thirty-four thousand, thirty-four".