4523428 has 72 divisors (see below), whose sum is σ = 10590272. Its totient is φ = 1645056.

The previous prime is 4523423. The next prime is 4523443. The reversal of 4523428 is 8243254.

It is a super-2 number, since 2×4523428² = 40922801742368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 4⁸ + 5⁴ + 2⁹ + 3⁵ + 4⁹ + 2²² + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 4523396 and 4523405.

It is not an unprimeable number, because it can be changed into a prime (4523423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105175 + ... + 105217.

Almost surely, 2^4523428 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 4523428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5295136).

4523428 is an abundant number, since it is smaller than the sum of its proper divisors (6066844).

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

4523428 is a wasteful number, since it uses less digits than its factorization.

4523428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 82 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 4523428 is about 2126.8352075325. The cubic root of 4523428 is about 165.3823761176.

The spelling of 4523428 in words is "four million, five hundred twenty-three thousand, four hundred twenty-eight".