1340013432 has 16 divisors (see below), whose sum is σ = 3350033640. Its totient is φ = 446671136.

The previous prime is 1340013431. The next prime is 1340013443. The reversal of 1340013432 is 2343100431.

It is a junction number, because it is equal to n+sod(n) for n = 1340013399 and 1340013408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340013431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27916923 + ... + 27916970.

Almost surely, 2^1340013432 is an apocalyptic number.

1340013432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340013432 is an abundant number, since it is smaller than the sum of its proper divisors (2010020208).

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

1340013432 is a wasteful number, since it uses less digits than its factorization.

1340013432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55833902 (or 55833898 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1340013432 is about 36606.1939021254. The cubic root of 1340013432 is about 1102.4774551259.

Adding to 1340013432 its reverse (2343100431), we get a palindrome (3683113863).

The spelling of 1340013432 in words is "one billion, three hundred forty million, thirteen thousand, four hundred thirty-two".