1868724 has 96 divisors (see below), whose sum is σ = 5738880. Its totient is φ = 522720.

The previous prime is 1868723. The next prime is 1868747. The reversal of 1868724 is 4278681.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143742 + ... + 143754.

It is an arithmetic number, because the mean of its divisors is an integer number (59780).

2^1868724 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 1868724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2869440).

1868724 is an abundant number, since it is smaller than the sum of its proper divisors (3870156).

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

1868724 is a wasteful number, since it uses less digits than its factorization.

1868724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 29 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 1868724 is about 1367.0128016957. The cubic root of 1868724 is about 123.1728681750.

The spelling of 1868724 in words is "one million, eight hundred sixty-eight thousand, seven hundred twenty-four".