303134040 has 144 divisors (see below), whose sum is σ = 1083045600. Its totient is φ = 73476480.

The previous prime is 303133993. The next prime is 303134057. The reversal of 303134040 is 40431303.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40081 + ... + 47039.

It is an arithmetic number, because the mean of its divisors is an integer number (7521150).

Almost surely, 2^303134040 is an apocalyptic number.

303134040 is a gapful number since it is divisible by the number (30) 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 303134040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541522800).

303134040 is an abundant number, since it is smaller than the sum of its proper divisors (779911560).

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

303134040 is a wasteful number, since it uses less digits than its factorization.

303134040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998 (or 6980 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303134040 is about 17410.7449582147. The cubic root of 303134040 is about 671.7560232521.

Adding to 303134040 its reverse (40431303), we get a palindrome (343565343).

The spelling of 303134040 in words is "three hundred three million, one hundred thirty-four thousand, forty".