20414880 has 72 divisors (see below), whose sum is σ = 69670692. Its totient is φ = 5443584.

The previous prime is 20414879. The next prime is 20414893. The reversal of 20414880 is 8841402.

It can be written as a sum of positive squares in 2 ways, for example, as 18766224 + 1648656 = 4332^2 + 1284^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5649 + ... + 8528.

Almost surely, 2^20414880 is an apocalyptic number.

20414880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20414880 is an abundant number, since it is smaller than the sum of its proper divisors (49255812).

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

20414880 is a wasteful number, since it uses less digits than its factorization.

20414880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14198 (or 14187 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 20414880 is about 4518.2828596714. The cubic root of 20414880 is about 273.3058601510.

The spelling of 20414880 in words is "twenty million, four hundred fourteen thousand, eight hundred eighty".