1297824406 has 16 divisors (see below), whose sum is σ = 1955457504. Its totient is φ = 646012224.

The previous prime is 1297824397. The next prime is 1297824413. The reversal of 1297824406 is 6044287921.

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, 541146 + ... + 543538.

It is an arithmetic number, because the mean of its divisors is an integer number (122216094).

Almost surely, 2^1297824406 is an apocalyptic number.

1297824406 is a deficient number, since it is larger than the sum of its proper divisors (657633098).

1297824406 is a wasteful number, since it uses less digits than its factorization.

1297824406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1297824406 is about 36025.3300609446. The cubic root of 1297824406 is about 1090.7837154707.

The spelling of 1297824406 in words is "one billion, two hundred ninety-seven million, eight hundred twenty-four thousand, four hundred six".