1378940126 has 8 divisors (see below), whose sum is σ = 2118859344. Its totient is φ = 672653680.

The previous prime is 1378940119. The next prime is 1378940141. The reversal of 1378940126 is 6210498731.

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

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 8408090 + ... + 8408253.

It is an arithmetic number, because the mean of its divisors is an integer number (264857418).

Almost surely, 2^1378940126 is an apocalyptic number.

1378940126 is a deficient number, since it is larger than the sum of its proper divisors (739919218).

1378940126 is a wasteful number, since it uses less digits than its factorization.

1378940126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16816386.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1378940126 is about 37134.0830774102. The cubic root of 1378940126 is about 1113.0511852901.

The spelling of 1378940126 in words is "one billion, three hundred seventy-eight million, nine hundred forty thousand, one hundred twenty-six".