40320421044430 has 32 divisors (see below), whose sum is σ = 72688761141984. Its totient is φ = 16103288267136.

The previous prime is 40320421044427. The next prime is 40320421044457. The reversal of 40320421044430 is 3444012402304.

40320421044430 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40320421044430² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40320421044392 and 40320421044401.

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, 33650304 + ... + 34827916.

It is an arithmetic number, because the mean of its divisors is an integer number (2271523785687).

Almost surely, 2^{40320421044430} is an apocalyptic number.

40320421044430 is a deficient number, since it is larger than the sum of its proper divisors (32368340097554).

40320421044430 is a wasteful number, since it uses less digits than its factorization.

40320421044430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182900.

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

Adding to 40320421044430 its reverse (3444012402304), we get a palindrome (43764433446734).

The spelling of 40320421044430 in words is "forty trillion, three hundred twenty billion, four hundred twenty-one million, forty-four thousand, four hundred thirty".