903998340 has 384 divisors, whose sum is σ = 3477196800. Its totient is φ = 190356480.

The previous prime is 903998323. The next prime is 903998351. The reversal of 903998340 is 43899309.

903998340 is digitally balanced in base 6, 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 (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2944467 + ... + 2944773.

It is an arithmetic number, because the mean of its divisors is an integer number (9055200).

Almost surely, 2^903998340 is an apocalyptic number.

903998340 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 903998340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1738598400).

903998340 is an abundant number, since it is smaller than the sum of its proper divisors (2573198460).

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

903998340 is a wasteful number, since it uses less digits than its factorization.

903998340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 903998340 is about 30066.5651513438. The cubic root of 903998340 is about 966.9170335771.

The spelling of 903998340 in words is "nine hundred three million, nine hundred ninety-eight thousand, three hundred forty".