1900046 has 4 divisors (see below), whose sum is σ = 2850072. Its totient is φ = 950022.

The previous prime is 1900043. The next prime is 1900049. The reversal of 1900046 is 6400091.

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

It is an interprime number because it is at equal distance from previous prime (1900043) and next prime (1900049).

It is a super-2 number, since 2×1900046² = 7220349604232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475010 + ... + 475013.

It is an arithmetic number, because the mean of its divisors is an integer number (712518).

2^1900046 is an apocalyptic number.

1900046 is a deficient number, since it is larger than the sum of its proper divisors (950026).

1900046 is an equidigital number, since it uses as much as digits as its factorization.

1900046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950025.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1900046 is about 1378.4215610618. The cubic root of 1900046 is about 123.8572324965.

The spelling of 1900046 in words is "one million, nine hundred thousand, forty-six".