1378674226 has 16 divisors (see below), whose sum is σ = 2078758080. Its totient is φ = 685762000.

The previous prime is 1378674221. The next prime is 1378674229. The reversal of 1378674226 is 6224768731.

It is not an unprimeable number, because it can be changed into a prime (1378674221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805860 + ... + 807568.

It is an arithmetic number, because the mean of its divisors is an integer number (129922380).

Almost surely, 2^1378674226 is an apocalyptic number.

1378674226 is a deficient number, since it is larger than the sum of its proper divisors (700083854).

1378674226 is a wasteful number, since it uses less digits than its factorization.

1378674226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569.

The product of its digits is 677376, while the sum is 46.

The square root of 1378674226 is about 37130.5026359730. The cubic root of 1378674226 is about 1112.9796377467.

The spelling of 1378674226 in words is "one billion, three hundred seventy-eight million, six hundred seventy-four thousand, two hundred twenty-six".