49040391 has 8 divisors (see below), whose sum is σ = 65424880. Its totient is φ = 32674752.

The previous prime is 49040333. The next prime is 49040417. The reversal of 49040391 is 19304094.

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

It is not a de Polignac number, because 49040391 - 2⁷ = 49040263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49040491) 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, 3315 + ... + 10443.

It is an arithmetic number, because the mean of its divisors is an integer number (8178110).

Almost surely, 2^49040391 is an apocalyptic number.

49040391 is a deficient number, since it is larger than the sum of its proper divisors (16384489).

49040391 is a wasteful number, since it uses less digits than its factorization.

49040391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 49040391 is about 7002.8844771280. The cubic root of 49040391 is about 366.0310896580.

The spelling of 49040391 in words is "forty-nine million, forty thousand, three hundred ninety-one".