2145933384 has 32 divisors (see below), whose sum is σ = 6131238720. Its totient is φ = 613123776.

The previous prime is 2145933337. The next prime is 2145933389. The reversal of 2145933384 is 4833395412.

2145933384 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2145933389) 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, 6386539 + ... + 6386874.

It is an arithmetic number, because the mean of its divisors is an integer number (191601210).

Almost surely, 2^2145933384 is an apocalyptic number.

2145933384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2145933384 is an abundant number, since it is smaller than the sum of its proper divisors (3985305336).

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

2145933384 is a wasteful number, since it uses less digits than its factorization.

2145933384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12773429 (or 12773425 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 2145933384 is about 46324.2202740640. The cubic root of 2145933384 is about 1289.8486259491.

The spelling of 2145933384 in words is "two billion, one hundred forty-five million, nine hundred thirty-three thousand, three hundred eighty-four".