20696064 has 44 divisors (see below), whose sum is σ = 55170744. Its totient is φ = 6897664.

The previous prime is 20696059. The next prime is 20696069. The reversal of 20696064 is 46069602.

It is an interprime number because it is at equal distance from previous prime (20696059) and next prime (20696069).

It is not an unprimeable number, because it can be changed into a prime (20696069) 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, 297 + ... + 6440.

Almost surely, 2^20696064 is an apocalyptic number.

20696064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20696064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27585372).

20696064 is an abundant number, since it is smaller than the sum of its proper divisors (34474680).

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

20696064 is an equidigital number, since it uses as much as digits as its factorization.

20696064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760 (or 6742 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20696064 is about 4549.2926922765. The cubic root of 20696064 is about 274.5549340788.

The spelling of 20696064 in words is "twenty million, six hundred ninety-six thousand, sixty-four".