4220744 has 16 divisors (see below), whose sum is σ = 8633520. Its totient is φ = 1918480.

The previous prime is 4220731. The next prime is 4220767. The reversal of 4220744 is 4470224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23894 + ... + 24069.

It is an arithmetic number, because the mean of its divisors is an integer number (539595).

Almost surely, 2^4220744 is an apocalyptic number.

4220744 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4220744 is an abundant number, since it is smaller than the sum of its proper divisors (4412776).

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

4220744 is a wasteful number, since it uses less digits than its factorization.

4220744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47980 (or 47976 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 4220744 is about 2054.4449372032. Note that the first 3 decimals coincide. The cubic root of 4220744 is about 161.6080551813.

Adding to 4220744 its reverse (4470224), we get a palindrome (8690968).

The spelling of 4220744 in words is "four million, two hundred twenty thousand, seven hundred forty-four".