1380828851 has 8 divisors (see below), whose sum is σ = 1441549824. Its totient is φ = 1320165000.

The previous prime is 1380828847. The next prime is 1380828871. The reversal of 1380828851 is 1588280831.

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

It is a cyclic number.

It is not a de Polignac number, because 1380828851 - 2² = 1380828847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380828871) 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, 39476 + ... + 65726.

It is an arithmetic number, because the mean of its divisors is an integer number (180193728).

Almost surely, 2^1380828851 is an apocalyptic number.

1380828851 is a deficient number, since it is larger than the sum of its proper divisors (60720973).

1380828851 is a wasteful number, since it uses less digits than its factorization.

1380828851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28561.

The product of its (nonzero) digits is 122880, while the sum is 44.

The square root of 1380828851 is about 37159.5055268501. The cubic root of 1380828851 is about 1113.5591330196.

The spelling of 1380828851 in words is "one billion, three hundred eighty million, eight hundred twenty-eight thousand, eight hundred fifty-one".