30400402144432 has 20 divisors (see below), whose sum is σ = 58908148447960. Its totient is φ = 15198299319168.

The previous prime is 30400402144397. The next prime is 30400402144433. The reversal of 30400402144432 is 23444120400403.

It is a junction number, because it is equal to n+sod(n) for n = 30400402144394 and 30400402144403.

It is not an unprimeable number, because it can be changed into a prime (30400402144433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118727682 + ... + 118983457.

It is an arithmetic number, because the mean of its divisors is an integer number (2945407422398).

Almost surely, 2^{30400402144432} is an apocalyptic number.

It is an amenable number.

30400402144432 is a deficient number, since it is larger than the sum of its proper divisors (28507746303528).

30400402144432 is a wasteful number, since it uses less digits than its factorization.

30400402144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237719140 (or 237719134 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 30400402144432 its reverse (23444120400403), we get a palindrome (53844522544835).

The spelling of 30400402144432 in words is "thirty trillion, four hundred billion, four hundred two million, one hundred forty-four thousand, four hundred thirty-two".