1872441 has 6 divisors (see below), whose sum is σ = 2704650. Its totient is φ = 1248288.

The previous prime is 1872427. The next prime is 1872461. The reversal of 1872441 is 1442781.

It can be written as a sum of positive squares in only one way, i.e., 1863225 + 9216 = 1365^2 + 96^2 .

It is not a de Polignac number, because 1872441 - 2⁷ = 1872313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1872421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104016 + ... + 104033.

It is an arithmetic number, because the mean of its divisors is an integer number (450775).

2^1872441 is an apocalyptic number.

It is an amenable number.

1872441 is a deficient number, since it is larger than the sum of its proper divisors (832209).

1872441 is a wasteful number, since it uses less digits than its factorization.

1872441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208055 (or 208052 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1872441 is about 1368.3716600398. The cubic root of 1872441 is about 123.2544800723.

It can be divided in two parts, 187 and 2441, that added together give a triangular number (2628 = T₇₂).

The spelling of 1872441 in words is "one million, eight hundred seventy-two thousand, four hundred forty-one".