1875220389 has 20 divisors (see below), whose sum is σ = 3201435424. Its totient is φ = 1071554184.

The previous prime is 1875220381. The next prime is 1875220397. The reversal of 1875220389 is 9830225781.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1875220381) and next prime (1875220397).

It is not a de Polignac number, because 1875220389 - 2³ = 1875220381 is a prime.

It is a super-2 number, since 2×1875220389² = 7032903014642622642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1875220381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1653067 + ... + 1654200.

Almost surely, 2^1875220389 is an apocalyptic number.

It is an amenable number.

1875220389 is a deficient number, since it is larger than the sum of its proper divisors (1326215035).

1875220389 is an equidigital number, since it uses as much as digits as its factorization.

1875220389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307286 (or 3307277 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1875220389 is about 43303.8149474154. The cubic root of 1875220389 is about 1233.1543486958.

The spelling of 1875220389 in words is "one billion, eight hundred seventy-five million, two hundred twenty thousand, three hundred eighty-nine".