20714280 has 32 divisors (see below), whose sum is σ = 62143200. Its totient is φ = 5523776.

The previous prime is 20714249. The next prime is 20714303. The reversal of 20714280 is 8241702.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20714280.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86190 + ... + 86429.

It is an arithmetic number, because the mean of its divisors is an integer number (1941975).

Almost surely, 2^20714280 is an apocalyptic number.

20714280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20714280 is an abundant number, since it is smaller than the sum of its proper divisors (41428920).

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

20714280 is a wasteful number, since it uses less digits than its factorization.

20714280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172633 (or 172629 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 20714280 is about 4551.2943213991. The cubic root of 20714280 is about 274.6354618879.

Adding to 20714280 its reverse (8241702), we get a palindrome (28955982).

The spelling of 20714280 in words is "twenty million, seven hundred fourteen thousand, two hundred eighty".