2643428438 has 8 divisors (see below), whose sum is σ = 4531591632. Its totient is φ = 1132897896.

The previous prime is 2643428423. The next prime is 2643428441. The reversal of 2643428438 is 8348243462.

2643428438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94408145 + ... + 94408172.

It is an arithmetic number, because the mean of its divisors is an integer number (566448954).

Almost surely, 2^2643428438 is an apocalyptic number.

2643428438 is a deficient number, since it is larger than the sum of its proper divisors (1888163194).

2643428438 is a wasteful number, since it uses less digits than its factorization.

2643428438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188816326.

The product of its digits is 884736, while the sum is 44.

The square root of 2643428438 is about 51414.2824320247. The cubic root of 2643428438 is about 1382.6826689601.

It can be divided in two parts, 26434 and 28438, that added together give a cube (54872 = 38³).

The spelling of 2643428438 in words is "two billion, six hundred forty-three million, four hundred twenty-eight thousand, four hundred thirty-eight".