1340930438 has 4 divisors (see below), whose sum is σ = 2011395660. Its totient is φ = 670465218.

The previous prime is 1340930413. The next prime is 1340930441. The reversal of 1340930438 is 8340390431.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1340930438³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340930398 and 1340930407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335232608 + ... + 335232611.

It is an arithmetic number, because the mean of its divisors is an integer number (502848915).

Almost surely, 2^1340930438 is an apocalyptic number.

1340930438 is a deficient number, since it is larger than the sum of its proper divisors (670465222).

1340930438 is an equidigital number, since it uses as much as digits as its factorization.

1340930438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670465221.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1340930438 is about 36618.7170447027. The cubic root of 1340930438 is about 1102.7288824355.

The spelling of 1340930438 in words is "one billion, three hundred forty million, nine hundred thirty thousand, four hundred thirty-eight".