49439144 has 32 divisors (see below), whose sum is σ = 97848000. Its totient is φ = 23371392.

The previous prime is 49439123. The next prime is 49439147. The reversal of 49439144 is 44193494.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 49439098 and 49439107.

It is not an unprimeable number, because it can be changed into a prime (49439147) 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, 14867 + ... + 17885.

It is an arithmetic number, because the mean of its divisors is an integer number (3057750).

Almost surely, 2^49439144 is an apocalyptic number.

It is an amenable number.

49439144 is a deficient number, since it is larger than the sum of its proper divisors (48408856).

49439144 is a wasteful number, since it uses less digits than its factorization.

49439144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3133 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 49439144 is about 7031.2974620620. The cubic root of 49439144 is about 367.0204929816.

The spelling of 49439144 in words is "forty-nine million, four hundred thirty-nine thousand, one hundred forty-four".