1380549312 has 56 divisors (see below), whose sum is σ = 4058564400. Its totient is φ = 460182528.

The previous prime is 1380549307. The next prime is 1380549341. The reversal of 1380549312 is 2139450831.

1380549312 is a `hidden beast` number, since 1 + 3 + 80 + 549 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397737 + ... + 401192.

Almost surely, 2^1380549312 is an apocalyptic number.

1380549312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1380549312 is an abundant number, since it is smaller than the sum of its proper divisors (2678015088).

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

1380549312 is an equidigital number, since it uses as much as digits as its factorization.

1380549312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798950 (or 798934 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1380549312 is about 37155.7439973956. The cubic root of 1380549312 is about 1113.4839839007.

The spelling of 1380549312 in words is "one billion, three hundred eighty million, five hundred forty-nine thousand, three hundred twelve".