1902331089 has 24 divisors (see below), whose sum is σ = 2941516032. Its totient is φ = 1227305520.

The previous prime is 1902331073. The next prime is 1902331097. The reversal of 1902331089 is 9801332091.

It is not a de Polignac number, because 1902331089 - 2⁴ = 1902331073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1902331019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118734 + ... + 133799.

It is an arithmetic number, because the mean of its divisors is an integer number (122563168).

Almost surely, 2^1902331089 is an apocalyptic number.

It is an amenable number.

1902331089 is a deficient number, since it is larger than the sum of its proper divisors (1039184943).

1902331089 is an equidigital number, since it uses as much as digits as its factorization.

1902331089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252579 (or 252567 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1902331089 is about 43615.7206635406. The cubic root of 1902331089 is about 1239.0686487651.

The spelling of 1902331089 in words is "one billion, nine hundred two million, three hundred thirty-one thousand, eighty-nine".