49457409 has 8 divisors (see below), whose sum is σ = 66006720. Its totient is φ = 32939856.

The previous prime is 49457371. The next prime is 49457423. The reversal of 49457409 is 90475494.

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

It is a de Polignac number, because none of the positive numbers 2^k-49457409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49457449) 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, 4029 + ... + 10730.

It is an arithmetic number, because the mean of its divisors is an integer number (8250840).

Almost surely, 2^49457409 is an apocalyptic number.

It is an amenable number.

49457409 is a deficient number, since it is larger than the sum of its proper divisors (16549311).

49457409 is a wasteful number, since it uses less digits than its factorization.

49457409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15879.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 49457409 is about 7032.5961777995. The cubic root of 49457409 is about 367.0656852685.

The spelling of 49457409 in words is "forty-nine million, four hundred fifty-seven thousand, four hundred nine".