1378143874 has 8 divisors (see below), whose sum is σ = 2133900288. Its totient is φ = 666843780.

The previous prime is 1378143857. The next prime is 1378143901. The reversal of 1378143874 is 4783418731.

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

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, 11114002 + ... + 11114125.

It is an arithmetic number, because the mean of its divisors is an integer number (266737536).

Almost surely, 2^1378143874 is an apocalyptic number.

1378143874 is a deficient number, since it is larger than the sum of its proper divisors (755756414).

1378143874 is a wasteful number, since it uses less digits than its factorization.

1378143874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22228160.

The product of its digits is 451584, while the sum is 46.

The square root of 1378143874 is about 37123.3602196784. The cubic root of 1378143874 is about 1112.8369048054.

The spelling of 1378143874 in words is "one billion, three hundred seventy-eight million, one hundred forty-three thousand, eight hundred seventy-four".