7045428 has 48 divisors (see below), whose sum is σ = 18643520. Its totient is φ = 2052864.

The previous prime is 7045427. The next prime is 7045453. The reversal of 7045428 is 8245407.

It is a junction number, because it is equal to n+sod(n) for n = 7045395 and 7045404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7045427) 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, 1776 + ... + 4152.

Almost surely, 2^7045428 is an apocalyptic number.

7045428 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7045428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9321760).

7045428 is an abundant number, since it is smaller than the sum of its proper divisors (11598092).

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

7045428 is a wasteful number, since it uses less digits than its factorization.

7045428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 7045428 is about 2654.3225124314. The cubic root of 7045428 is about 191.7060388765.

The spelling of 7045428 in words is "seven million, forty-five thousand, four hundred twenty-eight".