1993488 has 80 divisors (see below), whose sum is σ = 6249600. Its totient is φ = 534528.

The previous prime is 1993483. The next prime is 1993493. The reversal of 1993488 is 8843991.

It is an interprime number because it is at equal distance from previous prime (1993483) and next prime (1993493).

It is a super-2 number, since 2×1993488² = 7947988812288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (62208) is a multiple of the sum of its prime factors (384).

It is not an unprimeable number, because it can be changed into a prime (1993483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5538 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^1993488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124800).

1993488 is an abundant number, since it is smaller than the sum of its proper divisors (4256112).

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

1993488 is a wasteful number, since it uses less digits than its factorization.

1993488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 378 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1993488 is about 1411.9093455318. The cubic root of 1993488 is about 125.8552128770.

The spelling of 1993488 in words is "one million, nine hundred ninety-three thousand, four hundred eighty-eight".