1994550 has 24 divisors (see below), whose sum is σ = 4946856. Its totient is φ = 531840.

The previous prime is 1994543. The next prime is 1994567. The reversal of 1994550 is 554991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6499 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (206119).

2^1994550 is an apocalyptic number.

1994550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1994550 is an abundant number, since it is smaller than the sum of its proper divisors (2952306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1994550 is a wasteful number, since it uses less digits than its factorization.

1994550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13312 (or 13307 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1994550 is about 1412.2853819253. The cubic root of 1994550 is about 125.8775580509.

The spelling of 1994550 in words is "one million, nine hundred ninety-four thousand, five hundred fifty".