1881536 has 14 divisors (see below), whose sum is σ = 3733800. Its totient is φ = 940736.

The previous prime is 1881533. The next prime is 1881559. The reversal of 1881536 is 6351881.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14636 + ... + 14763.

It is an arithmetic number, because the mean of its divisors is an integer number (266700).

2^1881536 is an apocalyptic number.

1881536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1881536 is a deficient number, since it is larger than the sum of its proper divisors (1852264).

1881536 is an equidigital number, since it uses as much as digits as its factorization.

1881536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29411 (or 29401 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 1881536 is about 1371.6909272865. The cubic root of 1881536 is about 123.4537189926.

The spelling of 1881536 in words is "one million, eight hundred eighty-one thousand, five hundred thirty-six".