4232778 has 32 divisors (see below), whose sum is σ = 9400320. Its totient is φ = 1259760.

The previous prime is 4232777. The next prime is 4232819. The reversal of 4232778 is 8772324.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4232777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3351 + ... + 4437.

It is an arithmetic number, because the mean of its divisors is an integer number (293760).

Almost surely, 2^4232778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4232778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4700160).

4232778 is an abundant number, since it is smaller than the sum of its proper divisors (5167542).

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

4232778 is a wasteful number, since it uses less digits than its factorization.

4232778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its digits is 18816, while the sum is 33.

The square root of 4232778 is about 2057.3716241846. The cubic root of 4232778 is about 161.7614993732.

The spelling of 4232778 in words is "four million, two hundred thirty-two thousand, seven hundred seventy-eight".