1872726 has 8 divisors (see below), whose sum is σ = 3745464. Its totient is φ = 624240.

The previous prime is 1872721. The next prime is 1872727. The reversal of 1872726 is 6272781.

It is a sphenic number, since it is the product of 3 distinct primes.

1872726 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872721) 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 3 ways as a sum of consecutive naturals, for example, 156055 + ... + 156066.

It is an arithmetic number, because the mean of its divisors is an integer number (468183).

2^1872726 is an apocalyptic number.

1872726 is the 866-th centered pentagonal number.

1872726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1872726 is a wasteful number, since it uses less digits than its factorization.

1872726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312126.

The product of its digits is 9408, while the sum is 33.

The square root of 1872726 is about 1368.4757944516. The cubic root of 1872726 is about 123.2607331834.

The spelling of 1872726 in words is "one million, eight hundred seventy-two thousand, seven hundred twenty-six".