1861472 has 12 divisors (see below), whose sum is σ = 3664836. Its totient is φ = 930720.

The previous prime is 1861471. The next prime is 1861493. The reversal of 1861472 is 2741681.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1861471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29054 + ... + 29117.

It is an arithmetic number, because the mean of its divisors is an integer number (305403).

2^1861472 is an apocalyptic number.

It is an amenable number.

1861472 is a deficient number, since it is larger than the sum of its proper divisors (1803364).

1861472 is an equidigital number, since it uses as much as digits as its factorization.

1861472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58181 (or 58173 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 1861472 is about 1364.3577243524. The cubic root of 1861472 is about 123.0133283638.

The spelling of 1861472 in words is "one million, eight hundred sixty-one thousand, four hundred seventy-two".