20834084 has 6 divisors (see below), whose sum is σ = 36459654. Its totient is φ = 10417040.

The previous prime is 20834083. The next prime is 20834087. The reversal of 20834084 is 48043802.

It can be written as a sum of positive squares in only one way, i.e., 18731584 + 2102500 = 4328^2 + 1450^2 .

It is a super-2 number, since 2×20834084² = 868118112238112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20834081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604257 + ... + 2604264.

It is an arithmetic number, because the mean of its divisors is an integer number (6076609).

Almost surely, 2^20834084 is an apocalyptic number.

It is an amenable number.

20834084 is a deficient number, since it is larger than the sum of its proper divisors (15625570).

20834084 is a wasteful number, since it uses less digits than its factorization.

20834084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208525 (or 5208523 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 20834084 is about 4564.4368765490. The cubic root of 20834084 is about 275.1639088972.

Adding to 20834084 its reverse (48043802), we get a palindrome (68877886).

The spelling of 20834084 in words is "twenty million, eight hundred thirty-four thousand, eighty-four".