49440001 has 4 divisors (see below), whose sum is σ = 53243092. Its totient is φ = 45636912.

The previous prime is 49439993. The next prime is 49440007. The reversal of 49440001 is 10004494.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2873025 + 46566976 = 1695^2 + 6824^2 .

It is a cyclic number.

It is not a de Polignac number, because 49440001 - 2³ = 49439993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49440007) 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, 1901526 + ... + 1901551.

It is an arithmetic number, because the mean of its divisors is an integer number (13310773).

Almost surely, 2^49440001 is an apocalyptic number.

It is an amenable number.

49440001 is a deficient number, since it is larger than the sum of its proper divisors (3803091).

49440001 is a wasteful number, since it uses less digits than its factorization.

49440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803090.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 49440001 is about 7031.3584036088. The cubic root of 49440001 is about 367.0226136679.

Adding to 49440001 its reverse (10004494), we get a palindrome (59444495).

The spelling of 49440001 in words is "forty-nine million, four hundred forty thousand, one".