1993626 has 16 divisors (see below), whose sum is σ = 4430400. Its totient is φ = 664524.

The previous prime is 1993603. The next prime is 1993627. The reversal of 1993626 is 6263991.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1993627) 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 7 ways as a sum of consecutive naturals, for example, 18406 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (276900).

2^1993626 is an apocalyptic number.

1993626 is an abundant number, since it is smaller than the sum of its proper divisors (2436774).

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

1993626 is a wasteful number, since it uses less digits than its factorization.

1993626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36930 (or 36924 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 1993626 is about 1411.9582146792. The cubic root of 1993626 is about 125.8581169357.

The spelling of 1993626 in words is "one million, nine hundred ninety-three thousand, six hundred twenty-six".