1931381414 has 8 divisors (see below), whose sum is σ = 2933744160. Its totient is φ = 953466696.

The previous prime is 1931381399. The next prime is 1931381449. The reversal of 1931381414 is 4141831391.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111809 + ... + 6112124.

It is an arithmetic number, because the mean of its divisors is an integer number (366718020).

Almost surely, 2^1931381414 is an apocalyptic number.

1931381414 is a deficient number, since it is larger than the sum of its proper divisors (1002362746).

1931381414 is a wasteful number, since it uses less digits than its factorization.

1931381414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12224014.

The product of its digits is 10368, while the sum is 35.

The square root of 1931381414 is about 43947.4847289353. The cubic root of 1931381414 is about 1245.3440475373.

The spelling of 1931381414 in words is "one billion, nine hundred thirty-one million, three hundred eighty-one thousand, four hundred fourteen".