2031869898 has 12 divisors (see below), whose sum is σ = 4402384818. Its totient is φ = 677289960.

The previous prime is 2031869897. The next prime is 2031869929. The reversal of 2031869898 is 8989681302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1949840649 + 82029249 = 44157^2 + 9057^2 .

It is not an unprimeable number, because it can be changed into a prime (2031869893) 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, 56440813 + ... + 56440848.

Almost surely, 2^2031869898 is an apocalyptic number.

2031869898 is an abundant number, since it is smaller than the sum of its proper divisors (2370514920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031869898 is a wasteful number, since it uses less digits than its factorization.

2031869898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112881669 (or 112881666 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 2031869898 is about 45076.2675695315. The cubic root of 2031869898 is about 1266.5780735668.

The spelling of 2031869898 in words is "two billion, thirty-one million, eight hundred sixty-nine thousand, eight hundred ninety-eight".