2145744076 has 24 divisors (see below), whose sum is σ = 4339712160. Its totient is φ = 909270912.

The previous prime is 2145744049. The next prime is 2145744127. The reversal of 2145744076 is 6704475412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428035 + ... + 433018.

It is an arithmetic number, because the mean of its divisors is an integer number (180821340).

Almost surely, 2^2145744076 is an apocalyptic number.

It is an amenable number.

2145744076 is an abundant number, since it is smaller than the sum of its proper divisors (2193968084).

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

2145744076 is a wasteful number, since it uses less digits than its factorization.

2145744076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861153 (or 861151 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 2145744076 is about 46322.1769350276. The cubic root of 2145744076 is about 1289.8106959360.

The spelling of 2145744076 in words is "two billion, one hundred forty-five million, seven hundred forty-four thousand, seventy-six".