21614060 has 48 divisors (see below), whose sum is σ = 49744800. Its totient is φ = 7839744.

The previous prime is 21614057. The next prime is 21614141. The reversal of 21614060 is 6041612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14636 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (1036350).

Almost surely, 2^21614060 is an apocalyptic number.

21614060 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 21614060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24872400).

21614060 is an abundant number, since it is smaller than the sum of its proper divisors (28130740).

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

21614060 is a wasteful number, since it uses less digits than its factorization.

21614060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 21614060 is about 4649.0923845413. The cubic root of 21614060 is about 278.5557435206. Note that the first 3 decimals are identical.

Adding to 21614060 its reverse (6041612), we get a palindrome (27655672).

The spelling of 21614060 in words is "twenty-one million, six hundred fourteen thousand, sixty".