20614880 has 192 divisors, whose sum is σ = 61725888. Its totient is φ = 6389760.

The previous prime is 20614873. The next prime is 20614903. The reversal of 20614880 is 8841602.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388934 + ... + 388986.

It is an arithmetic number, because the mean of its divisors is an integer number (321489).

Almost surely, 2^20614880 is an apocalyptic number.

20614880 is a gapful number since it is divisible by the number (20) 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 20614880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30862944).

20614880 is an abundant number, since it is smaller than the sum of its proper divisors (41111008).

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

20614880 is a wasteful number, since it uses less digits than its factorization.

20614880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 20614880 is about 4540.3612191102. The cubic root of 20614880 is about 274.1954667544.

The spelling of 20614880 in words is "twenty million, six hundred fourteen thousand, eight hundred eighty".