9490428 has 72 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 3013920.

The previous prime is 9490423. The next prime is 9490457. The reversal of 9490428 is 8240949.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9490392 and 9490401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9490423) 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, 120093 + ... + 120171.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 2^9490428 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 9490428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12579840).

9490428 is an abundant number, since it is smaller than the sum of its proper divisors (15669252).

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

9490428 is a wasteful number, since it uses less digits than its factorization.

9490428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 9490428 is about 3080.6538267063. The cubic root of 9490428 is about 211.7200231978.

The spelling of 9490428 in words is "nine million, four hundred ninety thousand, four hundred twenty-eight".