20219060 has 24 divisors (see below), whose sum is σ = 43158696. Its totient is φ = 7954560.

The previous prime is 20219033. The next prime is 20219077. The reversal of 20219060 is 6091202.

It can be written as a sum of positive squares in 4 ways, for example, as 256036 + 19963024 = 506^2 + 4468^2 .

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

It is a congruent number.

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, 7067 + ... + 9506.

It is an arithmetic number, because the mean of its divisors is an integer number (1798279).

Almost surely, 2^20219060 is an apocalyptic number.

20219060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20219060 is an abundant number, since it is smaller than the sum of its proper divisors (22939636).

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

20219060 is a wasteful number, since it uses less digits than its factorization.

20219060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16643 (or 16641 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20219060 is about 4496.5609080719. The cubic root of 20219060 is about 272.4291991243.

The spelling of 20219060 in words is "twenty million, two hundred nineteen thousand, sixty".