1881542 has 8 divisors (see below), whose sum is σ = 3039456. Its totient is φ = 868392.

The previous prime is 1881533. The next prime is 1881559. The reversal of 1881542 is 2451881.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36158 + ... + 36209.

It is an arithmetic number, because the mean of its divisors is an integer number (379932).

2^1881542 is an apocalyptic number.

1881542 is a deficient number, since it is larger than the sum of its proper divisors (1157914).

1881542 is a wasteful number, since it uses less digits than its factorization.

1881542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72382.

The product of its digits is 2560, while the sum is 29.

The square root of 1881542 is about 1371.6931143663. The cubic root of 1881542 is about 123.4538502190.

The spelling of 1881542 in words is "one million, eight hundred eighty-one thousand, five hundred forty-two".