1380824347 has 4 divisors (see below), whose sum is σ = 1578084976. Its totient is φ = 1183563720.

The previous prime is 1380824279. The next prime is 1380824381. The reversal of 1380824347 is 7434280831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380824347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380824147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98630304 + ... + 98630317.

It is an arithmetic number, because the mean of its divisors is an integer number (394521244).

Almost surely, 2^1380824347 is an apocalyptic number.

1380824347 is a deficient number, since it is larger than the sum of its proper divisors (197260629).

1380824347 is an equidigital number, since it uses as much as digits as its factorization.

1380824347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197260628.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 1380824347 is about 37159.4449231955. Note that the first 3 decimals coincide. The cubic root of 1380824347 is about 1113.5579222792.

The spelling of 1380824347 in words is "one billion, three hundred eighty million, eight hundred twenty-four thousand, three hundred forty-seven".