30400404015 has 16 divisors (see below), whose sum is σ = 49465065600. Its totient is φ = 15938742432.

The previous prime is 30400404007. The next prime is 30400404049. The reversal of 30400404015 is 51040400403.

It is not a de Polignac number, because 30400404015 - 2³ = 30400404007 is a prime.

It is a super-3 number, since 3×30400404015³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30400403982 and 30400404000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17174485 + ... + 17176254.

It is an arithmetic number, because the mean of its divisors is an integer number (3091566600).

Almost surely, 2^30400404015 is an apocalyptic number.

30400404015 is a deficient number, since it is larger than the sum of its proper divisors (19064661585).

30400404015 is a wasteful number, since it uses less digits than its factorization.

30400404015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34350806.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 30400404015 its reverse (51040400403), we get a palindrome (81440804418).

The spelling of 30400404015 in words is "thirty billion, four hundred million, four hundred four thousand, fifteen".