2149903398 has 32 divisors (see below), whose sum is σ = 4375657440. Its totient is φ = 704021760.

The previous prime is 2149903397. The next prime is 2149903423. The reversal of 2149903398 is 8933099412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149903397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339808 + ... + 346076.

It is an arithmetic number, because the mean of its divisors is an integer number (136739295).

Almost surely, 2^2149903398 is an apocalyptic number.

2149903398 is an abundant number, since it is smaller than the sum of its proper divisors (2225754042).

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

2149903398 is a wasteful number, since it uses less digits than its factorization.

2149903398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 2149903398 is about 46367.0507796215. The cubic root of 2149903398 is about 1290.6435500565.

The spelling of 2149903398 in words is "two billion, one hundred forty-nine million, nine hundred three thousand, three hundred ninety-eight".