20634614 has 48 divisors (see below), whose sum is σ = 41917344. Its totient is φ = 7413120.

The previous prime is 20634613. The next prime is 20634619. The reversal of 20634614 is 41643602.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20634613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21554 + ... + 22490.

It is an arithmetic number, because the mean of its divisors is an integer number (873278).

Almost surely, 2^20634614 is an apocalyptic number.

20634614 is an abundant number, since it is smaller than the sum of its proper divisors (21282730).

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

20634614 is a wasteful number, since it uses less digits than its factorization.

20634614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20634614 is about 4542.5338743921. The cubic root of 20634614 is about 274.2829318552.

The spelling of 20634614 in words is "twenty million, six hundred thirty-four thousand, six hundred fourteen".