2146912140 has 48 divisors (see below), whose sum is σ = 6058708992. Its totient is φ = 567999936.

The previous prime is 2146912139. The next prime is 2146912147. The reversal of 2146912140 is 412196412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2146912098 and 2146912107.

It is not an unprimeable number, because it can be changed into a prime (2146912147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133254 + ... + 148493.

It is an arithmetic number, because the mean of its divisors is an integer number (126223104).

Almost surely, 2^2146912140 is an apocalyptic number.

2146912140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146912140 is an abundant number, since it is smaller than the sum of its proper divisors (3911796852).

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

2146912140 is a wasteful number, since it uses less digits than its factorization.

2146912140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281886 (or 281884 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2146912140 is about 46334.7832626851. The cubic root of 2146912140 is about 1290.0446952845.

The spelling of 2146912140 in words is "two billion, one hundred forty-six million, nine hundred twelve thousand, one hundred forty".