1378714840 has 32 divisors (see below), whose sum is σ = 3130578000. Its totient is φ = 546424704.

The previous prime is 1378714837. The next prime is 1378714853. The reversal of 1378714840 is 484178731.

It is a super-2 number, since 2×1378714840² = 3801709220072451200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153750 + ... + 162469.

Almost surely, 2^1378714840 is an apocalyptic number.

1378714840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378714840 is an abundant number, since it is smaller than the sum of its proper divisors (1751863160).

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

1378714840 is a wasteful number, since it uses less digits than its factorization.

1378714840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316339 (or 316335 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 1378714840 is about 37131.0495407819. The cubic root of 1378714840 is about 1112.9905666305.

The spelling of 1378714840 in words is "one billion, three hundred seventy-eight million, seven hundred fourteen thousand, eight hundred forty".