40400431031430 has 96 divisors (see below), whose sum is σ = 107882471983104. Its totient is φ = 10482040597248.

The previous prime is 40400431031419. The next prime is 40400431031447. The reversal of 40400431031430 is 3413013400404.

40400431031430 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 0 + 4 + 310 + 314 + 30 = 666.

40400431031430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40400431031394 and 40400431031403.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 189347067 + ... + 189560313.

It is an arithmetic number, because the mean of its divisors is an integer number (1123775749824).

Almost surely, 2^{40400431031430} is an apocalyptic number.

40400431031430 is an abundant number, since it is smaller than the sum of its proper divisors (67482040951674).

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

40400431031430 is a wasteful number, since it uses less digits than its factorization.

40400431031430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270190 (or 270187 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40400431031430 its reverse (3413013400404), we get a palindrome (43813444431834).

The spelling of 40400431031430 in words is "forty trillion, four hundred billion, four hundred thirty-one million, thirty-one thousand, four hundred thirty".