14220570 has 64 divisors (see below), whose sum is σ = 42013440. Its totient is φ = 2999808.

The previous prime is 14220559. The next prime is 14220611. The reversal of 14220570 is 7502241.

14220570 = 540² + 541² + ... + 584².

It is a super-2 number, since 2×14220570² = 404449222249800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 126 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (656460).

Almost surely, 2^14220570 is an apocalyptic number.

14220570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14220570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21006720).

14220570 is an abundant number, since it is smaller than the sum of its proper divisors (27792870).

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

14220570 is a wasteful number, since it uses less digits than its factorization.

14220570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 14220570 is about 3771.0171041776. The cubic root of 14220570 is about 242.2733632007.

The spelling of 14220570 in words is "fourteen million, two hundred twenty thousand, five hundred seventy".