2643458234 has 4 divisors (see below), whose sum is σ = 3965187354. Its totient is φ = 1321729116.

The previous prime is 2643458227. The next prime is 2643458249. The reversal of 2643458234 is 4328543462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4328543462 = 2 ⋅2164271731.

It can be written as a sum of positive squares in only one way, i.e., 2580335209 + 63123025 = 50797^2 + 7945^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2643458191 and 2643458200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660864557 + ... + 660864560.

Almost surely, 2^2643458234 is an apocalyptic number.

2643458234 is a deficient number, since it is larger than the sum of its proper divisors (1321729120).

2643458234 is a wasteful number, since it uses less digits than its factorization.

2643458234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321729119.

The product of its digits is 552960, while the sum is 41.

The square root of 2643458234 is about 51414.5721950499. The cubic root of 2643458234 is about 1382.6878640138.

The spelling of 2643458234 in words is "two billion, six hundred forty-three million, four hundred fifty-eight thousand, two hundred thirty-four".