9028740 has 144 divisors (see below), whose sum is σ = 30566592. Its totient is φ = 1983744.

The previous prime is 9028699. The next prime is 9028741. The reversal of 9028740 is 478209.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9028698 and 9028707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9028741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108739 + ... + 108821.

It is an arithmetic number, because the mean of its divisors is an integer number (212268).

Almost surely, 2^9028740 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 9028740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15283296).

9028740 is an abundant number, since it is smaller than the sum of its proper divisors (21537852).

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

9028740 is a wasteful number, since it uses less digits than its factorization.

9028740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 9028740 is about 3004.7861820769. The cubic root of 9028740 is about 208.2295604071.

The spelling of 9028740 in words is "nine million, twenty-eight thousand, seven hundred forty".