1788072 has 64 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 499200.

The previous prime is 1788067. The next prime is 1788097. The reversal of 1788072 is 2708871.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3172 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (82215).

2^1788072 is an apocalyptic number.

1788072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1788072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2630880).

1788072 is an abundant number, since it is smaller than the sum of its proper divisors (3473688).

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

1788072 is a wasteful number, since it uses less digits than its factorization.

1788072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 1788072 is about 1337.1880944729. The cubic root of 1788072 is about 121.3747460242.

The spelling of 1788072 in words is "one million, seven hundred eighty-eight thousand, seventy-two".