2389445901 has 6 divisors (see below), whose sum is σ = 3451421870. Its totient is φ = 1592963928.

The previous prime is 2389445881. The next prime is 2389445917. The reversal of 2389445901 is 1095449832.

It can be written as a sum of positive squares in only one way, i.e., 2040690276 + 348755625 = 45174^2 + 18675^2 .

It is not a de Polignac number, because 2389445901 - 2¹¹ = 2389443853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389445941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132746986 + ... + 132747003.

Almost surely, 2^2389445901 is an apocalyptic number.

It is an amenable number.

2389445901 is a deficient number, since it is larger than the sum of its proper divisors (1061975969).

2389445901 is a wasteful number, since it uses less digits than its factorization.

2389445901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265493995 (or 265493992 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2389445901 is about 48881.9588498661. The cubic root of 2389445901 is about 1336.9004436092.

The spelling of 2389445901 in words is "two billion, three hundred eighty-nine million, four hundred forty-five thousand, nine hundred one".