4227390 has 80 divisors (see below), whose sum is σ = 12074832. Its totient is φ = 1057536.

The previous prime is 4227389. The next prime is 4227397. The reversal of 4227390 is 937224.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4227397) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13617 + ... + 13923.

Almost surely, 2^4227390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4227390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6037416).

4227390 is an abundant number, since it is smaller than the sum of its proper divisors (7847442).

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

4227390 is a wasteful number, since it uses less digits than its factorization.

4227390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 4227390 is about 2056.0617695001. The cubic root of 4227390 is about 161.6928335911.

The spelling of 4227390 in words is "four million, two hundred twenty-seven thousand, three hundred ninety".