1372288905 has 64 divisors (see below), whose sum is σ = 2741598720. Its totient is φ = 646195968.

The previous prime is 1372288871. The next prime is 1372288913. The reversal of 1372288905 is 5098822731.

It is a happy number.

1372288905 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1372288905 - 2⁷ = 1372288777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 63 ways as a sum of consecutive naturals, for example, 23367 + ... + 57363.

It is an arithmetic number, because the mean of its divisors is an integer number (42837480).

Almost surely, 2^1372288905 is an apocalyptic number.

1372288905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1372288905 is a deficient number, since it is larger than the sum of its proper divisors (1369309815).

1372288905 is a wasteful number, since it uses less digits than its factorization.

1372288905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34047 (or 34041 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1372288905 is about 37044.4180005571. The cubic root of 1372288905 is about 1111.2587254789.

The spelling of 1372288905 in words is "one billion, three hundred seventy-two million, two hundred eighty-eight thousand, nine hundred five".