1409948257 has 8 divisors (see below), whose sum is σ = 1485237600. Its totient is φ = 1334767104.

The previous prime is 1409948237. The next prime is 1409948269. The reversal of 1409948257 is 7528499041.

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

It is a cyclic number.

It is not a de Polignac number, because 1409948257 - 2²⁷ = 1275730529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1409948257.

It is not an unprimeable number, because it can be changed into a prime (1409948237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 53104.

It is an arithmetic number, because the mean of its divisors is an integer number (185654700).

Almost surely, 2^1409948257 is an apocalyptic number.

It is an amenable number.

1409948257 is a deficient number, since it is larger than the sum of its proper divisors (75289343).

1409948257 is a wasteful number, since it uses less digits than its factorization.

1409948257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54095.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 1409948257 is about 37549.2777160893. The cubic root of 1409948257 is about 1121.3324535452.

The spelling of 1409948257 in words is "one billion, four hundred nine million, nine hundred forty-eight thousand, two hundred fifty-seven".