1340432430 has 32 divisors (see below), whose sum is σ = 3262353408. Its totient is φ = 352413600.

The previous prime is 1340432417. The next prime is 1340432441. The reversal of 1340432430 is 342340431.

1340432430 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1340432430.

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, 312526 + ... + 316785.

It is an arithmetic number, because the mean of its divisors is an integer number (101948544).

Almost surely, 2^1340432430 is an apocalyptic number.

1340432430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340432430 is an abundant number, since it is smaller than the sum of its proper divisors (1921920978).

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

1340432430 is a wasteful number, since it uses less digits than its factorization.

1340432430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629392.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1340432430 is about 36611.9165026908. The cubic root of 1340432430 is about 1102.5923514147.

Adding to 1340432430 its reverse (342340431), we get a palindrome (1682772861).

The spelling of 1340432430 in words is "one billion, three hundred forty million, four hundred thirty-two thousand, four hundred thirty".