304001222040 has 128 divisors (see below), whose sum is σ = 1048280184000. Its totient is φ = 78271570944.

The previous prime is 304001222009. The next prime is 304001222081. The reversal of 304001222040 is 40222100403.

304001222040 is a `hidden beast` number, since 3 + 0 + 400 + 1 + 2 + 220 + 40 = 666.

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 31 ways as a sum of consecutive naturals, for example, 4821829 + ... + 4884468.

Almost surely, 2^304001222040 is an apocalyptic number.

304001222040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304001222040 is an abundant number, since it is smaller than the sum of its proper divisors (744278961960).

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

304001222040 is a wasteful number, since it uses less digits than its factorization.

304001222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9706346 (or 9706336 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 304001222040 its reverse (40222100403), we get a palindrome (344223322443).

The spelling of 304001222040 in words is "three hundred four billion, one million, two hundred twenty-two thousand, forty".