1378018614 has 64 divisors (see below), whose sum is σ = 3211149312. Its totient is φ = 386100000.

The previous prime is 1378018613. The next prime is 1378018627. The reversal of 1378018614 is 4168108731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378018613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705339 + ... + 707289.

It is an arithmetic number, because the mean of its divisors is an integer number (50174208).

Almost surely, 2^1378018614 is an apocalyptic number.

1378018614 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378018614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605574656).

1378018614 is an abundant number, since it is smaller than the sum of its proper divisors (1833130698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1378018614 is a wasteful number, since it uses less digits than its factorization.

1378018614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1378018614 is about 37121.6731034580. The cubic root of 1378018614 is about 1112.8031883997.

The spelling of 1378018614 in words is "one billion, three hundred seventy-eight million, eighteen thousand, six hundred fourteen".