1898541 has 12 divisors (see below), whose sum is σ = 2759068. Its totient is φ = 1257984.

The previous prime is 1898539. The next prime is 1898549. The reversal of 1898541 is 1458981.

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 585225 = 1146^2 + 765^2 .

It is not a de Polignac number, because 1898541 - 2¹ = 1898539 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1898496 and 1898505.

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 11 ways as a sum of consecutive naturals, for example, 1191 + ... + 2283.

2^1898541 is an apocalyptic number.

It is an amenable number.

1898541 is a deficient number, since it is larger than the sum of its proper divisors (860527).

1898541 is a wasteful number, since it uses less digits than its factorization.

1898541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292 (or 1289 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1898541 is about 1377.8755386464. The cubic root of 1898541 is about 123.8245219949.

The spelling of 1898541 in words is "one million, eight hundred ninety-eight thousand, five hundred forty-one".