4375634638 has 8 divisors (see below), whose sum is σ = 6565592880. Its totient is φ = 2187103680.

The previous prime is 4375634629. The next prime is 4375634639. The reversal of 4375634638 is 8364365734.

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

It is a junction number, because it is equal to n+sod(n) for n = 4375634591 and 4375634600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4375634639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349123 + ... + 361438.

It is an arithmetic number, because the mean of its divisors is an integer number (820699110).

Almost surely, 2^4375634638 is an apocalyptic number.

4375634638 is a deficient number, since it is larger than the sum of its proper divisors (2189958242).

4375634638 is a wasteful number, since it uses less digits than its factorization.

4375634638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713642.

The product of its digits is 4354560, while the sum is 49.

The square root of 4375634638 is about 66148.5800149935. The cubic root of 4375634638 is about 1635.6122348128.

The spelling of 4375634638 in words is "four billion, three hundred seventy-five million, six hundred thirty-four thousand, six hundred thirty-eight".