240400403430 has 32 divisors (see below), whose sum is σ = 629411966208. Its totient is φ = 58278885600.

The previous prime is 240400403423. The next prime is 240400403443. The reversal of 240400403430 is 34304004042.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 240400403430.

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, 364242706 + ... + 364243365.

It is an arithmetic number, because the mean of its divisors is an integer number (19669123944).

Almost surely, 2^240400403430 is an apocalyptic number.

240400403430 is an abundant number, since it is smaller than the sum of its proper divisors (389011562778).

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

240400403430 is a wasteful number, since it uses less digits than its factorization.

240400403430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728486092.

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

Adding to 240400403430 its reverse (34304004042), we get a palindrome (274704407472).

The spelling of 240400403430 in words is "two hundred forty billion, four hundred million, four hundred three thousand, four hundred thirty".