1378345270 has 16 divisors (see below), whose sum is σ = 2487215808. Its totient is φ = 549961600.

The previous prime is 1378345231. The next prime is 1378345271. The reversal of 1378345270 is 725438731.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378345271) 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, 167854 + ... + 175873.

It is an arithmetic number, because the mean of its divisors is an integer number (155450988).

Almost surely, 2^1378345270 is an apocalyptic number.

1378345270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1378345270 is a deficient number, since it is larger than the sum of its proper divisors (1108870538).

1378345270 is a wasteful number, since it uses less digits than its factorization.

1378345270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344135.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1378345270 is about 37126.0726444368. The cubic root of 1378345270 is about 1112.8911105598.

The spelling of 1378345270 in words is "one billion, three hundred seventy-eight million, three hundred forty-five thousand, two hundred seventy".