1898542 has 8 divisors (see below), whose sum is σ = 2882376. Its totient is φ = 937752.

The previous prime is 1898539. The next prime is 1898549. The reversal of 1898542 is 2458981.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553 + ... + 5884.

It is an arithmetic number, because the mean of its divisors is an integer number (360297).

2^1898542 is an apocalyptic number.

1898542 is a deficient number, since it is larger than the sum of its proper divisors (983834).

1898542 is a wasteful number, since it uses less digits than its factorization.

1898542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522.

The product of its digits is 23040, while the sum is 37.

The square root of 1898542 is about 1377.8759015238. The cubic root of 1898542 is about 123.8245437352.

The spelling of 1898542 in words is "one million, eight hundred ninety-eight thousand, five hundred forty-two".