4378238340 has 48 divisors (see below), whose sum is σ = 14010364032. Its totient is φ = 1000740096.

The previous prime is 4378238317. The next prime is 4378238399. The reversal of 4378238340 is 438328734.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4378238292 and 4378238301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5211769 + ... + 5212608.

It is an arithmetic number, because the mean of its divisors is an integer number (291882584).

Almost surely, 2^4378238340 is an apocalyptic number.

It is an amenable number.

4378238340 is an abundant number, since it is smaller than the sum of its proper divisors (9632125692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4378238340 is a wasteful number, since it uses less digits than its factorization.

4378238340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10424396 (or 10424394 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 4378238340 is about 66168.2577978293. The cubic root of 4378238340 is about 1635.9365917562.

The spelling of 4378238340 in words is "four billion, three hundred seventy-eight million, two hundred thirty-eight thousand, three hundred forty".