1356724872 has 24 divisors (see below), whose sum is σ = 3674463390. Its totient is φ = 452241600.

The previous prime is 1356724829. The next prime is 1356724909. The reversal of 1356724872 is 2784276531.

1356724872 is a `hidden beast` number, since 1 + 3 + 567 + 2 + 4 + 87 + 2 = 666.

1356724872 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1080699876 + 276024996 = 32874^2 + 16614^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9421629 + ... + 9421772.

Almost surely, 2^1356724872 is an apocalyptic number.

1356724872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1356724872 is an abundant number, since it is smaller than the sum of its proper divisors (2317738518).

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

1356724872 is a wasteful number, since it uses less digits than its factorization.

1356724872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18843413 (or 18843406 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 1356724872 is about 36833.7463747580. The cubic root of 1356724872 is about 1107.0415693244.

The spelling of 1356724872 in words is "one billion, three hundred fifty-six million, seven hundred twenty-four thousand, eight hundred seventy-two".