21466130 has 64 divisors (see below), whose sum is σ = 47001600. Its totient is φ = 6899904.

The previous prime is 21466103. The next prime is 21466141. The reversal of 21466130 is 3166412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 21466096 and 21466105.

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, 107771 + ... + 107969.

It is an arithmetic number, because the mean of its divisors is an integer number (734400).

Almost surely, 2^21466130 is an apocalyptic number.

21466130 is an abundant number, since it is smaller than the sum of its proper divisors (25535470).

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

21466130 is a wasteful number, since it uses less digits than its factorization.

21466130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 21466130 is about 4633.1555121753. The cubic root of 21466130 is about 277.9187951838.

The spelling of 21466130 in words is "twenty-one million, four hundred sixty-six thousand, one hundred thirty".