4234272638 has 4 divisors (see below), whose sum is σ = 6351408960. Its totient is φ = 2117136318.

The previous prime is 4234272619. The next prime is 4234272689. The reversal of 4234272638 is 8362724324.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4234272595 and 4234272604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058568158 + ... + 1058568161.

It is an arithmetic number, because the mean of its divisors is an integer number (1587852240).

Almost surely, 2^4234272638 is an apocalyptic number.

4234272638 is a deficient number, since it is larger than the sum of its proper divisors (2117136322).

4234272638 is a wasteful number, since it uses less digits than its factorization.

4234272638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117136321.

The product of its digits is 387072, while the sum is 41.

The square root of 4234272638 is about 65071.2888914919. The cubic root of 4234272638 is about 1617.8053702265.

The spelling of 4234272638 in words is "four billion, two hundred thirty-four million, two hundred seventy-two thousand, six hundred thirty-eight".