1369405872 has 40 divisors (see below), whose sum is σ = 3930703280. Its totient is φ = 456468480.

The previous prime is 1369405841. The next prime is 1369405937. The reversal of 1369405872 is 2785049631.

1369405872 is a `hidden beast` number, since 1 + 3 + 69 + 4 + 0 + 587 + 2 = 666.

1369405872 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

1369405872 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1584529 + ... + 1585392.

It is an arithmetic number, because the mean of its divisors is an integer number (98267582).

It is a 1-persistent number, because it is pandigital, but 2⋅1369405872 = 2738811744 is not.

Almost surely, 2^1369405872 is an apocalyptic number.

1369405872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1369405872 is an abundant number, since it is smaller than the sum of its proper divisors (2561297408).

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

1369405872 is a wasteful number, since it uses less digits than its factorization.

1369405872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169938 (or 3169926 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1369405872 is about 37005.4843502960. The cubic root of 1369405872 is about 1110.4799677409.

The spelling of 1369405872 in words is "one billion, three hundred sixty-nine million, four hundred five thousand, eight hundred seventy-two".