40540405430 has 64 divisors (see below), whose sum is σ = 85156531200. Its totient is φ = 13607528064.

The previous prime is 40540405391. The next prime is 40540405487. The reversal of 40540405430 is 3450404504.

It is a junction number, because it is equal to n+sod(n) for n = 40540405393 and 40540405402.

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, 1720871 + ... + 1744269.

It is an arithmetic number, because the mean of its divisors is an integer number (1330570800).

Almost surely, 2^40540405430 is an apocalyptic number.

40540405430 is an abundant number, since it is smaller than the sum of its proper divisors (44616125770).

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

40540405430 is a wasteful number, since it uses less digits than its factorization.

40540405430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23933.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 40540405430 its reverse (3450404504), we get a palindrome (43990809934).

The spelling of 40540405430 in words is "forty billion, five hundred forty million, four hundred five thousand, four hundred thirty".