1361578272 has 48 divisors (see below), whose sum is σ = 3619405440. Its totient is φ = 448111872.

The previous prime is 1361578259. The next prime is 1361578301. The reversal of 1361578272 is 2728751631.

It is a tau number, because it is divible by the number of its divisors (48).

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, 82183 + ... + 97350.

It is an arithmetic number, because the mean of its divisors is an integer number (75404280).

Almost surely, 2^1361578272 is an apocalyptic number.

1361578272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1361578272 is an abundant number, since it is smaller than the sum of its proper divisors (2257827168).

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

1361578272 is a wasteful number, since it uses less digits than its factorization.

1361578272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179625 (or 179617 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 1361578272 is about 36899.5700787963. The cubic root of 1361578272 is about 1108.3600683898.

The spelling of 1361578272 in words is "one billion, three hundred sixty-one million, five hundred seventy-eight thousand, two hundred seventy-two".