1922045 has 8 divisors (see below), whose sum is σ = 2350296. Its totient is φ = 1508416.

The previous prime is 1922027. The next prime is 1922047. The reversal of 1922045 is 5402291.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 1387684 = 731^2 + 1178^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1922045 - 2⁶ = 1921981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1922045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3362 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (293787).

2^1922045 is an apocalyptic number.

It is an amenable number.

1922045 is a deficient number, since it is larger than the sum of its proper divisors (428251).

1922045 is an equidigital number, since it uses as much as digits as its factorization.

1922045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1922045 is about 1386.3783754805. The cubic root of 1922045 is about 124.3334115980. Note that the first 3 decimals are identical.

It can be divided in two parts, 19220 and 45, that multiplied together give a square (864900 = 930²).

The spelling of 1922045 in words is "one million, nine hundred twenty-two thousand, forty-five".