1356878080 has 36 divisors (see below), whose sum is σ = 3250150092. Its totient is φ = 542750720.

The previous prime is 1356878057. The next prime is 1356878087. The reversal of 1356878080 is 808786531.

It can be written as a sum of positive squares in 2 ways, for example, as 320553216 + 1036324864 = 17904^2 + 32192^2 .

It is a super-2 number, since 2×1356878080² = 3682236247968972800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1356878080.

It is not an unprimeable number, because it can be changed into a prime (1356878087) 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, 528751 + ... + 531310.

It is an arithmetic number, because the mean of its divisors is an integer number (90281947).

Almost surely, 2^1356878080 is an apocalyptic number.

1356878080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1356878080 is an abundant number, since it is smaller than the sum of its proper divisors (1893272012).

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

1356878080 is an equidigital number, since it uses as much as digits as its factorization.

1356878080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060082 (or 1060068 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1356878080 is about 36835.8260393330. The cubic root of 1356878080 is about 1107.0832386032.

The spelling of 1356878080 in words is "one billion, three hundred fifty-six million, eight hundred seventy-eight thousand, eighty".