1889074481 has 4 divisors (see below), whose sum is σ = 2158942272. Its totient is φ = 1619206692.

The previous prime is 1889074469. The next prime is 1889074501. The reversal of 1889074481 is 1844709881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1844709881 = 7 ⋅263529983.

It is a cyclic number.

It is not a de Polignac number, because 1889074481 - 2¹⁴ = 1889058097 is a prime.

It is a super-2 number, since 2×1889074481² = 7137204789530838722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1889073481) 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, 134933885 + ... + 134933898.

It is an arithmetic number, because the mean of its divisors is an integer number (539735568).

Almost surely, 2^1889074481 is an apocalyptic number.

It is an amenable number.

1889074481 is a deficient number, since it is larger than the sum of its proper divisors (269867791).

1889074481 is an equidigital number, since it uses as much as digits as its factorization.

1889074481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269867790.

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 1889074481 is about 43463.4844553448. The cubic root of 1889074481 is about 1236.1837407026.

The spelling of 1889074481 in words is "one billion, eight hundred eighty-nine million, seventy-four thousand, four hundred eighty-one".