304134440340 has 48 divisors (see below), whose sum is σ = 851683093632. Its totient is φ = 81092359296.

The previous prime is 304134440293. The next prime is 304134440347. The reversal of 304134440340 is 43044431403.

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 = 304134440298 and 304134440307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304134440347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171822 + ... + 798618.

It is an arithmetic number, because the mean of its divisors is an integer number (17743397784).

Almost surely, 2^304134440340 is an apocalyptic number.

304134440340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304134440340 is an abundant number, since it is smaller than the sum of its proper divisors (547548653292).

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

304134440340 is a wasteful number, since it uses less digits than its factorization.

304134440340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634896 (or 634894 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 304134440340 its reverse (43044431403), we get a palindrome (347178871743).

The spelling of 304134440340 in words is "three hundred four billion, one hundred thirty-four million, four hundred forty thousand, three hundred forty".