1391345414 has 16 divisors (see below), whose sum is σ = 2250445680. Its totient is φ = 642983040.

The previous prime is 1391345413. The next prime is 1391345429. The reversal of 1391345414 is 4145431931.

It is a super-2 number, since 2×1391345414² = 3871684122117662792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391345411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444959 + ... + 448074.

It is an arithmetic number, because the mean of its divisors is an integer number (140652855).

Almost surely, 2^1391345414 is an apocalyptic number.

1391345414 is a deficient number, since it is larger than the sum of its proper divisors (859100266).

1391345414 is a wasteful number, since it uses less digits than its factorization.

1391345414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893095.

The product of its digits is 25920, while the sum is 35.

The square root of 1391345414 is about 37300.7428076171. The cubic root of 1391345414 is about 1116.3789875802.

The spelling of 1391345414 in words is "one billion, three hundred ninety-one million, three hundred forty-five thousand, four hundred fourteen".