2149258940 has 12 divisors (see below), whose sum is σ = 4513443816. Its totient is φ = 859703568.

The previous prime is 2149258931. The next prime is 2149258957. The reversal of 2149258940 is 498529412.

It is a junction number, because it is equal to n+sod(n) for n = 2149258891 and 2149258900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53731454 + ... + 53731493.

It is an arithmetic number, because the mean of its divisors is an integer number (376120318).

Almost surely, 2^2149258940 is an apocalyptic number.

2149258940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149258940 is an abundant number, since it is smaller than the sum of its proper divisors (2364184876).

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

2149258940 is a wasteful number, since it uses less digits than its factorization.

2149258940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107462956 (or 107462954 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 2149258940 is about 46360.1007332814. The cubic root of 2149258940 is about 1290.5145754731.

The spelling of 2149258940 in words is "two billion, one hundred forty-nine million, two hundred fifty-eight thousand, nine hundred forty".