733428 has 24 divisors (see below), whose sum is σ = 1901760. Its totient is φ = 244440.

The previous prime is 733427. The next prime is 733433. The reversal of 733428 is 824337.

733428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3288 + ... + 3503.

It is an arithmetic number, because the mean of its divisors is an integer number (79240).

2⁷³³⁴²⁸ is an apocalyptic number.

It is an amenable number.

733428 is an abundant number, since it is smaller than the sum of its proper divisors (1168332).

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

733428 is a wasteful number, since it uses less digits than its factorization.

733428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804 (or 6796 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 733428 is about 856.4041102190. The cubic root of 733428 is about 90.1818545184.

Subtracting 733428 from its reverse (824337), we obtain a palindrome (90909).

The spelling of 733428 in words is "seven hundred thirty-three thousand, four hundred twenty-eight".