49440891 has 8 divisors (see below), whose sum is σ = 67165200. Its totient is φ = 32338592.

The previous prime is 49440883. The next prime is 49440901. The reversal of 49440891 is 19804494.

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 49440891 - 2³ = 49440883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49440821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155316 + ... + 155633.

It is an arithmetic number, because the mean of its divisors is an integer number (8395650).

Almost surely, 2^49440891 is an apocalyptic number.

49440891 is a deficient number, since it is larger than the sum of its proper divisors (17724309).

49440891 is a wasteful number, since it uses less digits than its factorization.

49440891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311005.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 49440891 is about 7031.4216912371. The cubic root of 49440891 is about 367.0248159883.

The spelling of 49440891 in words is "forty-nine million, four hundred forty thousand, eight hundred ninety-one".