1864372 has 12 divisors (see below), whose sum is σ = 3299940. Its totient is φ = 921536.

The previous prime is 1864363. The next prime is 1864391. The reversal of 1864372 is 2734681.

It can be written as a sum of positive squares in 2 ways, for example, as 992016 + 872356 = 996^2 + 934^2 .

It is a congruent number.

It is an unprimeable number.

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, 2263 + ... + 2974.

It is an arithmetic number, because the mean of its divisors is an integer number (274995).

2^1864372 is an apocalyptic number.

It is an amenable number.

1864372 is a deficient number, since it is larger than the sum of its proper divisors (1435568).

1864372 is a wasteful number, since it uses less digits than its factorization.

1864372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330 (or 5328 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1864372 is about 1365.4200818796. The cubic root of 1864372 is about 123.0771763216.

The spelling of 1864372 in words is "one million, eight hundred sixty-four thousand, three hundred seventy-two".