4352778 has 40 divisors (see below), whose sum is σ = 9889572. Its totient is φ = 1430784.

The previous prime is 4352753. The next prime is 4352779. The reversal of 4352778 is 8772534.

It can be written as a sum of positive squares in 2 ways, for example, as 4173849 + 178929 = 2043^2 + 423^2 .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4352779) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15576 + ... + 15852.

Almost surely, 2^4352778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4352778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4944786).

4352778 is an abundant number, since it is smaller than the sum of its proper divisors (5536794).

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

4352778 is a wasteful number, since it uses less digits than its factorization.

4352778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 379 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 4352778 is about 2086.3312296948. The cubic root of 4352778 is about 163.2759324421.

The spelling of 4352778 in words is "four million, three hundred fifty-two thousand, seven hundred seventy-eight".