303034256040 has 128 divisors (see below), whose sum is σ = 938478752640. Its totient is φ = 78231207936.

The previous prime is 303034256033. The next prime is 303034256053. The reversal of 303034256040 is 40652430303.

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 = 303034255989 and 303034256007.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323224 + ... + 842936.

It is an arithmetic number, because the mean of its divisors is an integer number (7331865255).

Almost surely, 2^303034256040 is an apocalyptic number.

303034256040 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 303034256040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469239376320).

303034256040 is an abundant number, since it is smaller than the sum of its proper divisors (635444496600).

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

303034256040 is a wasteful number, since it uses less digits than its factorization.

303034256040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519883 (or 519879 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 303034256040 its reverse (40652430303), we get a palindrome (343686686343).

The spelling of 303034256040 in words is "three hundred three billion, thirty-four million, two hundred fifty-six thousand, forty".