40420434504 has 32 divisors (see below), whose sum is σ = 104310800640. Its totient is φ = 13038849600.

The previous prime is 40420434503. The next prime is 40420434539. The reversal of 40420434504 is 40543402404.

It is not an unprimeable number, because it can be changed into a prime (40420434503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27163527 + ... + 27165014.

It is an arithmetic number, because the mean of its divisors is an integer number (3259712520).

Almost surely, 2^40420434504 is an apocalyptic number.

It is an amenable number.

40420434504 is an abundant number, since it is smaller than the sum of its proper divisors (63890366136).

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

40420434504 is a wasteful number, since it uses less digits than its factorization.

40420434504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54328581 (or 54328577 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 40420434504 its reverse (40543402404), we get a palindrome (80963836908).

The spelling of 40420434504 in words is "forty billion, four hundred twenty million, four hundred thirty-four thousand, five hundred four".