304404312040 has 32 divisors (see below), whose sum is σ = 689506425000. Its totient is φ = 120944529664.

The previous prime is 304404312019. The next prime is 304404312061. The reversal of 304404312040 is 40213404403.

It is an interprime number because it is at equal distance from previous prime (304404312019) and next prime (304404312061).

It can be written as a sum of positive squares in 4 ways, for example, as 92901820804 + 211502491236 = 304798^2 + 459894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304404311996 and 304404312014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25531315 + ... + 25543234.

Almost surely, 2^304404312040 is an apocalyptic number.

It is an amenable number.

304404312040 is an abundant number, since it is smaller than the sum of its proper divisors (385102112960).

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

304404312040 is a wasteful number, since it uses less digits than its factorization.

304404312040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51074709 (or 51074705 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 304404312040 its reverse (40213404403), we get a palindrome (344617716443).

The spelling of 304404312040 in words is "three hundred four billion, four hundred four million, three hundred twelve thousand, forty".