903420 has 96 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 205632.

The previous prime is 903407. The next prime is 903421. The reversal of 903420 is 24309.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 903393 and 903402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (903421) by changing a digit.

903420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3661 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (33600).

2⁹⁰³⁴²⁰ is an apocalyptic number.

903420 is a gapful number since it is divisible by the number (90) 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 903420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612800).

903420 is an abundant number, since it is smaller than the sum of its proper divisors (2322180).

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

903420 is a wasteful number, since it uses less digits than its factorization.

903420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 903420 is about 950.4840871893. The cubic root of 903420 is about 96.6710792014.

Adding to 903420 its reverse (24309), we get a palindrome (927729).

The spelling of 903420 in words is "nine hundred three thousand, four hundred twenty".