2578018232 has 8 divisors (see below), whose sum is σ = 4833784200. Its totient is φ = 1289009112.

The previous prime is 2578018231. The next prime is 2578018237. The reversal of 2578018232 is 2328108752.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578018231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161126132 + ... + 161126147.

It is an arithmetic number, because the mean of its divisors is an integer number (604223025).

Almost surely, 2^2578018232 is an apocalyptic number.

It is an amenable number.

2578018232 is a deficient number, since it is larger than the sum of its proper divisors (2255765968).

2578018232 is a wasteful number, since it uses less digits than its factorization.

2578018232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322252285 (or 322252281 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 2578018232 is about 50774.1886395046. The cubic root of 2578018232 is about 1371.1827093030.

The spelling of 2578018232 in words is "two billion, five hundred seventy-eight million, eighteen thousand, two hundred thirty-two".