1409248257 has 8 divisors (see below), whose sum is σ = 1905462720. Its totient is φ = 926266320.

The previous prime is 1409248241. The next prime is 1409248279. The reversal of 1409248257 is 7528429041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1409248257 - 2⁴ = 1409248241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1409248237) by changing a digit.

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, 3307882 + ... + 3308307.

It is an arithmetic number, because the mean of its divisors is an integer number (238182840).

Almost surely, 2^1409248257 is an apocalyptic number.

It is an amenable number.

1409248257 is a deficient number, since it is larger than the sum of its proper divisors (496214463).

1409248257 is an equidigital number, since it uses as much as digits as its factorization.

1409248257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616263.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1409248257 is about 37539.9554741345. The cubic root of 1409248257 is about 1121.1468527265.

The spelling of 1409248257 in words is "one billion, four hundred nine million, two hundred forty-eight thousand, two hundred fifty-seven".