1994450 has 24 divisors (see below), whose sum is σ = 3753108. Its totient is φ = 788480.

The previous prime is 1994441. The next prime is 1994459. The reversal of 1994450 is 544991.

It is an interprime number because it is at equal distance from previous prime (1994441) and next prime (1994459).

It can be written as a sum of positive squares in 6 ways, for example, as 142129 + 1852321 = 377^2 + 1361^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994459) 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 in 11 ways as a sum of consecutive naturals, for example, 5474 + ... + 5826.

2^1994450 is an apocalyptic number.

1994450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1994450 is a deficient number, since it is larger than the sum of its proper divisors (1758658).

1994450 is a wasteful number, since it uses less digits than its factorization.

1994450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1994450 is about 1412.2499778722. The cubic root of 1994450 is about 125.8754543239.

The spelling of 1994450 in words is "one million, nine hundred ninety-four thousand, four hundred fifty".