4374440638 has 12 divisors (see below), whose sum is σ = 6606061560. Its totient is φ = 2172518936.

The previous prime is 4374440573. The next prime is 4374440639. The reversal of 4374440638 is 8360444734.

It is a junction number, because it is equal to n+sod(n) for n = 4374440594 and 4374440603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4374440639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4858 + ... + 93661.

It is an arithmetic number, because the mean of its divisors is an integer number (550505130).

Almost surely, 2^4374440638 is an apocalyptic number.

4374440638 is a deficient number, since it is larger than the sum of its proper divisors (2231620922).

4374440638 is an equidigital number, since it uses as much as digits as its factorization.

4374440638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98819 (or 98670 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 43.

The square root of 4374440638 is about 66139.5542621811. The cubic root of 4374440638 is about 1635.4634488780.

The spelling of 4374440638 in words is "four billion, three hundred seventy-four million, four hundred forty thousand, six hundred thirty-eight".