2192940 has 96 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 561600.

The previous prime is 2192933. The next prime is 2192941. The reversal of 2192940 is 492912.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2192941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16675 + ... + 16805.

It is an arithmetic number, because the mean of its divisors is an integer number (73920).

2^2192940 is an apocalyptic number.

2192940 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 2192940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3548160).

2192940 is an abundant number, since it is smaller than the sum of its proper divisors (4903380).

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

2192940 is a wasteful number, since it uses less digits than its factorization.

2192940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2192940 is about 1480.8578594855. The cubic root of 2192940 is about 129.9198717259.

The spelling of 2192940 in words is "two million, one hundred ninety-two thousand, nine hundred forty".