4390889472 has 336 divisors, whose sum is σ = 14018315220. Its totient is φ = 1369571328.

The previous prime is 4390889467. The next prime is 4390889473. The reversal of 4390889472 is 2749880934.

4390889472 is a `hidden beast` number, since 4 + 3 + 90 + 8 + 89 + 472 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3763086336 + 627803136 = 61344^2 + 25056^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4390889473) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 25380778 + ... + 25380950.

Almost surely, 2^4390889472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4390889472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7009157610).

4390889472 is an abundant number, since it is smaller than the sum of its proper divisors (9627425748).

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

4390889472 is an equidigital number, since it uses as much as digits as its factorization.

4390889472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 4390889472 is about 66263.7870333412. The cubic root of 4390889472 is about 1637.5107825330.

The spelling of 4390889472 in words is "four billion, three hundred ninety million, eight hundred eighty-nine thousand, four hundred seventy-two".