4390209228438 has 256 divisors, whose sum is σ = 11717598412800. Its totient is φ = 1202721696000.

The previous prime is 4390209228371. The next prime is 4390209228463. The reversal of 4390209228438 is 8348229020934.

4390209228438 is a `hidden beast` number, since 4 + 390 + 20 + 9 + 228 + 4 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 111858498 + ... + 111897738.

It is an arithmetic number, because the mean of its divisors is an integer number (45771868800).

Almost surely, 2^{4390209228438} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4390209228438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5858799206400).

4390209228438 is an abundant number, since it is smaller than the sum of its proper divisors (7327389184362).

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

4390209228438 is a wasteful number, since it uses less digits than its factorization.

4390209228438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39736 (or 39730 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 4390209228438 in words is "four trillion, three hundred ninety billion, two hundred nine million, two hundred twenty-eight thousand, four hundred thirty-eight".