1361870928 has 80 divisors (see below), whose sum is σ = 4264459200. Its totient is φ = 412686720.

The previous prime is 1361870903. The next prime is 1361870929. The reversal of 1361870928 is 8290781631.

1361870928 is a `hidden beast` number, since 1 + 3 + 618 + 7 + 0 + 9 + 28 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361870929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138543 + ... + 148046.

It is an arithmetic number, because the mean of its divisors is an integer number (53305740).

Almost surely, 2^1361870928 is an apocalyptic number.

1361870928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1361870928 is an abundant number, since it is smaller than the sum of its proper divisors (2902588272).

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

1361870928 is a wasteful number, since it uses less digits than its factorization.

1361870928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286617 (or 286605 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1361870928 is about 36903.5354403884. The cubic root of 1361870928 is about 1108.4394725621.

The spelling of 1361870928 in words is "one billion, three hundred sixty-one million, eight hundred seventy thousand, nine hundred twenty-eight".