1356241872 has 40 divisors (see below), whose sum is σ = 3555926176. Its totient is φ = 445332096.

The previous prime is 1356241871. The next prime is 1356241877. The reversal of 1356241872 is 2781426531.

It is a self number, because there is not a number n which added to its sum of digits gives 1356241872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356241871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207643 + ... + 214074.

Almost surely, 2^1356241872 is an apocalyptic number.

1356241872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1356241872 is an abundant number, since it is smaller than the sum of its proper divisors (2199684304).

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

1356241872 is a wasteful number, since it uses less digits than its factorization.

1356241872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421795 (or 421789 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 1356241872 is about 36827.1893035567. The cubic root of 1356241872 is about 1106.9101831818.

The spelling of 1356241872 in words is "one billion, three hundred fifty-six million, two hundred forty-one thousand, eight hundred seventy-two".