1898074 has 4 divisors (see below), whose sum is σ = 2847114. Its totient is φ = 949036.

The previous prime is 1898069. The next prime is 1898077. The reversal of 1898074 is 4708981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4708981 = 673 ⋅6997.

It can be written as a sum of positive squares in only one way, i.e., 986049 + 912025 = 993^2 + 955^2 .

It is not an unprimeable number, because it can be changed into a prime (1898077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474517 + ... + 474520.

2^1898074 is an apocalyptic number.

1898074 is a deficient number, since it is larger than the sum of its proper divisors (949040).

1898074 is an equidigital number, since it uses as much as digits as its factorization.

1898074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949039.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1898074 is about 1377.7060644419. The cubic root of 1898074 is about 123.8143684448.

The spelling of 1898074 in words is "one million, eight hundred ninety-eight thousand, seventy-four".