2192420 has 12 divisors (see below), whose sum is σ = 4604124. Its totient is φ = 876960.

The previous prime is 2192417. The next prime is 2192423. The reversal of 2192420 is 242912.

It is an interprime number because it is at equal distance from previous prime (2192417) and next prime (2192423).

It can be written as a sum of positive squares in 2 ways, for example, as 1094116 + 1098304 = 1046^2 + 1048^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 109621 = 2192420 / (2 + 1 + 9 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2192392 and 2192401.

It is not an unprimeable number, because it can be changed into a prime (2192423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54791 + ... + 54830.

It is an arithmetic number, because the mean of its divisors is an integer number (383677).

2^2192420 is an apocalyptic number.

2192420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2192420 is an abundant number, since it is smaller than the sum of its proper divisors (2411704).

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

2192420 is a wasteful number, since it uses less digits than its factorization.

2192420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109630 (or 109628 counting only the distinct ones).

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

The square root of 2192420 is about 1480.6822751691. The cubic root of 2192420 is about 129.9096018487.

The spelling of 2192420 in words is "two million, one hundred ninety-two thousand, four hundred twenty".