40402430430 has 64 divisors (see below), whose sum is σ = 102462658560. Its totient is φ = 10175083776.

The previous prime is 40402430377. The next prime is 40402430447. The reversal of 40402430430 is 3403420404.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40402430430.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 316087 + ... + 425106.

It is an arithmetic number, because the mean of its divisors is an integer number (1600979040).

Almost surely, 2^40402430430 is an apocalyptic number.

40402430430 is an abundant number, since it is smaller than the sum of its proper divisors (62060228130).

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

40402430430 is a wasteful number, since it uses less digits than its factorization.

40402430430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741305.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 40402430430 its reverse (3403420404), we get a palindrome (43805850834).

The spelling of 40402430430 in words is "forty billion, four hundred two million, four hundred thirty thousand, four hundred thirty".