1413878391 has 12 divisors (see below), whose sum is σ = 2042923168. Its totient is φ = 942283584.

The previous prime is 1413878371. The next prime is 1413878413. The reversal of 1413878391 is 1938783141.

It is not a de Polignac number, because 1413878391 - 2⁵ = 1413878359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1413878371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6591 + ... + 53583.

Almost surely, 2^1413878391 is an apocalyptic number.

1413878391 is a deficient number, since it is larger than the sum of its proper divisors (629044777).

1413878391 is a wasteful number, since it uses less digits than its factorization.

1413878391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50342 (or 50339 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 1413878391 is about 37601.5743154459. The cubic root of 1413878391 is about 1122.3733660713.

It can be divided in two parts, 14138 and 78391, that added together give a palindrome (92529).

The spelling of 1413878391 in words is "one billion, four hundred thirteen million, eight hundred seventy-eight thousand, three hundred ninety-one".