1840073 has 2 divisors, whose sum is σ = 1840074. Its totient is φ = 1840072.

The previous prime is 1840057. The next prime is 1840087. The reversal of 1840073 is 3700481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1373584 + 466489 = 1172^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1840073 - 2⁴ = 1840057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1840043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920036 + 920037.

It is an arithmetic number, because the mean of its divisors is an integer number (920037).

2^1840073 is an apocalyptic number.

It is an amenable number.

1840073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1840073 is an equidigital number, since it uses as much as digits as its factorization.

1840073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1840073 is about 1356.4929045152. The cubic root of 1840073 is about 122.5401340106.

The spelling of 1840073 in words is "one million, eight hundred forty thousand, seventy-three".