2146758340 has 24 divisors (see below), whose sum is σ = 4536913752. Its totient is φ = 853232640.

The previous prime is 2146758329. The next prime is 2146758349. The reversal of 2146758340 is 438576412.

It can be written as a sum of positive squares in 4 ways, for example, as 255552196 + 1891206144 = 15986^2 + 43488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2146758293 and 2146758302.

It is not an unprimeable number, because it can be changed into a prime (2146758349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338701 + ... + 344980.

It is an arithmetic number, because the mean of its divisors is an integer number (189038073).

Almost surely, 2^2146758340 is an apocalyptic number.

2146758340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146758340 is an abundant number, since it is smaller than the sum of its proper divisors (2390155412).

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

2146758340 is a wasteful number, since it uses less digits than its factorization.

2146758340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683847 (or 683845 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2146758340 is about 46333.1235726667. The cubic root of 2146758340 is about 1290.0138892401.

The spelling of 2146758340 in words is "two billion, one hundred forty-six million, seven hundred fifty-eight thousand, three hundred forty".