1378716120 has 64 divisors (see below), whose sum is σ = 4595724000. Its totient is φ = 367657344.

The previous prime is 1378716113. The next prime is 1378716139. The reversal of 1378716120 is 216178731.

1378716120 is a `hidden beast` number, since 1 + 37 + 8 + 7 + 1 + 612 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637215 + ... + 639374.

Almost surely, 2^1378716120 is an apocalyptic number.

1378716120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378716120 is an abundant number, since it is smaller than the sum of its proper divisors (3217007880).

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

1378716120 is a wasteful number, since it uses less digits than its factorization.

1378716120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276609 (or 1276599 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1378716120 is about 37131.0667770265. The cubic root of 1378716120 is about 1112.9909110642.

The spelling of 1378716120 in words is "one billion, three hundred seventy-eight million, seven hundred sixteen thousand, one hundred twenty".