20734296 has 32 divisors (see below), whose sum is σ = 56548800. Its totient is φ = 6283040.

The previous prime is 20734283. The next prime is 20734297. The reversal of 20734296 is 69243702.

It is a super-2 number, since 2×20734296² = 859822061231232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20734297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39006 + ... + 39533.

It is an arithmetic number, because the mean of its divisors is an integer number (1767150).

Almost surely, 2^20734296 is an apocalyptic number.

It is an amenable number.

20734296 is an abundant number, since it is smaller than the sum of its proper divisors (35814504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20734296 is a wasteful number, since it uses less digits than its factorization.

20734296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78559 (or 78555 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 20734296 is about 4553.4927253703. The cubic root of 20734296 is about 274.7238925704.

Adding to 20734296 its reverse (69243702), we get a palindrome (89977998).

The spelling of 20734296 in words is "twenty million, seven hundred thirty-four thousand, two hundred ninety-six".