1807272 has 40 divisors (see below), whose sum is σ = 5063850. Its totient is φ = 602208.

The previous prime is 1807249. The next prime is 1807277. The reversal of 1807272 is 2727081.

It can be written as a sum of positive squares in only one way, i.e., 1454436 + 352836 = 1206^2 + 594^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1807277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 747 + ... + 2042.

2^1807272 is an apocalyptic number.

1807272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1807272 is an abundant number, since it is smaller than the sum of its proper divisors (3256578).

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

1807272 is a wasteful number, since it uses less digits than its factorization.

1807272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807 (or 2794 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1807272 is about 1344.3481691883. The cubic root of 1807272 is about 121.8076337762.

The spelling of 1807272 in words is "one million, eight hundred seven thousand, two hundred seventy-two".