1869672 has 64 divisors (see below), whose sum is σ = 5529600. Its totient is φ = 515520.

The previous prime is 1869649. The next prime is 1869691. The reversal of 1869672 is 2769681.

It is a self number, because there is not a number n which added to its sum of digits gives 1869672.

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, 5029 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2^1869672 is an apocalyptic number.

1869672 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 1869672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764800).

1869672 is an abundant number, since it is smaller than the sum of its proper divisors (3659928).

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

1869672 is a wasteful number, since it uses less digits than its factorization.

1869672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 402 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 1869672 is about 1367.3594991808. The cubic root of 1869672 is about 123.1936931049.

Subtracting 1869672 from its reverse (2769681), we obtain a palindrome (900009).

The spelling of 1869672 in words is "one million, eight hundred sixty-nine thousand, six hundred seventy-two".