49040389 has 4 divisors (see below), whose sum is σ = 49099680. Its totient is φ = 48981100.

The previous prime is 49040333. The next prime is 49040417. The reversal of 49040389 is 98304094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49040389 - 2⁷ = 49040261 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 (49070389) 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 3 ways as a sum of consecutive naturals, for example, 28387 + ... + 30064.

It is an arithmetic number, because the mean of its divisors is an integer number (12274920).

Almost surely, 2^49040389 is an apocalyptic number.

It is an amenable number.

49040389 is a deficient number, since it is larger than the sum of its proper divisors (59291).

49040389 is an equidigital number, since it uses as much as digits as its factorization.

49040389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59290.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 49040389 is about 7002.8843343297. The cubic root of 49040389 is about 366.0310846821.

The spelling of 49040389 in words is "forty-nine million, forty thousand, three hundred eighty-nine".