1840546 has 4 divisors (see below), whose sum is σ = 2760822. Its totient is φ = 920272.

The previous prime is 1840541. The next prime is 1840561. The reversal of 1840546 is 6450481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1550025 + 290521 = 1245^2 + 539^2 .

It is not an unprimeable number, because it can be changed into a prime (1840541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460135 + ... + 460138.

2^1840546 is an apocalyptic number.

1840546 is a deficient number, since it is larger than the sum of its proper divisors (920276).

1840546 is an equidigital number, since it uses as much as digits as its factorization.

1840546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920275.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1840546 is about 1356.6672399671. The cubic root of 1840546 is about 122.5506329632.

The spelling of 1840546 in words is "one million, eight hundred forty thousand, five hundred forty-six".