1413938779 has 4 divisors (see below), whose sum is σ = 1542478680. Its totient is φ = 1285398880.

The previous prime is 1413938753. The next prime is 1413938803. The reversal of 1413938779 is 9778393141.

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

It is a cyclic number.

It is not a de Polignac number, because 1413938779 - 2¹⁹ = 1413414491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1413938749) 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, 64269934 + ... + 64269955.

It is an arithmetic number, because the mean of its divisors is an integer number (385619670).

Almost surely, 2^1413938779 is an apocalyptic number.

1413938779 is a deficient number, since it is larger than the sum of its proper divisors (128539901).

1413938779 is a wasteful number, since it uses less digits than its factorization.

1413938779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128539900.

The product of its digits is 1143072, while the sum is 52.

The square root of 1413938779 is about 37602.3773051652. The cubic root of 1413938779 is about 1122.3893450311.

The spelling of 1413938779 in words is "one billion, four hundred thirteen million, nine hundred thirty-eight thousand, seven hundred seventy-nine".