49289749 has 8 divisors (see below), whose sum is σ = 53462808. Its totient is φ = 45258240.

The previous prime is 49289741. The next prime is 49289753. The reversal of 49289749 is 94798294.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3294225 + 45995524 = 1815^2 + 6782^2 .

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 49289749 - 2³ = 49289741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49289696 and 49289705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49289741) 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, 34662 + ... + 36055.

It is an arithmetic number, because the mean of its divisors is an integer number (6682851).

Almost surely, 2^49289749 is an apocalyptic number.

It is an amenable number.

49289749 is a deficient number, since it is larger than the sum of its proper divisors (4173059).

49289749 is a wasteful number, since it uses less digits than its factorization.

49289749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70775.

The product of its digits is 1306368, while the sum is 52.

The square root of 49289749 is about 7020.6658516127. The cubic root of 49289749 is about 366.6504329819.

The spelling of 49289749 in words is "forty-nine million, two hundred eighty-nine thousand, seven hundred forty-nine".