1343770639 has 8 divisors (see below), whose sum is σ = 1381691520. Its totient is φ = 1306315296.

The previous prime is 1343770633. The next prime is 1343770643. The reversal of 1343770639 is 9360773431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1343770639 - 2¹⁷ = 1343639567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1343770595 and 1343770604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343770633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110527 + ... + 122080.

It is an arithmetic number, because the mean of its divisors is an integer number (172711440).

Almost surely, 2^1343770639 is an apocalyptic number.

1343770639 is a deficient number, since it is larger than the sum of its proper divisors (37920881).

1343770639 is a wasteful number, since it uses less digits than its factorization.

1343770639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232769.

The product of its (nonzero) digits is 285768, while the sum is 43.

The square root of 1343770639 is about 36657.4772590804. The cubic root of 1343770639 is about 1103.5068902342.

It can be divided in two parts, 134 and 3770639, that added together give a palindrome (3770773).

The spelling of 1343770639 in words is "one billion, three hundred forty-three million, seven hundred seventy thousand, six hundred thirty-nine".