1898481 has 8 divisors (see below), whose sum is σ = 2726080. Its totient is φ = 1168272.

The previous prime is 1898467. The next prime is 1898483. The reversal of 1898481 is 1848981.

It is a happy number.

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

It is not a de Polignac number, because 1898481 - 2⁶ = 1898417 is a prime.

It is a super-2 number, since 2×1898481² = 7208460214722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 48679 = 1898481 / (1 + 8 + 9 + 8 + 4 + 8 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1898483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24301 + ... + 24378.

It is an arithmetic number, because the mean of its divisors is an integer number (340760).

2^1898481 is an apocalyptic number.

It is an amenable number.

1898481 is a deficient number, since it is larger than the sum of its proper divisors (827599).

1898481 is a wasteful number, since it uses less digits than its factorization.

1898481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48695.

The product of its digits is 18432, while the sum is 39.

The square root of 1898481 is about 1377.8537658257. The cubic root of 1898481 is about 123.8232175635.

The spelling of 1898481 in words is "one million, eight hundred ninety-eight thousand, four hundred eighty-one".