49447480 has 32 divisors (see below), whose sum is σ = 114848640. Its totient is φ = 19140480.

The previous prime is 49447471. The next prime is 49447483. The reversal of 49447480 is 8474494.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49447483) 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, 18699 + ... + 21178.

It is an arithmetic number, because the mean of its divisors is an integer number (3589020).

Almost surely, 2^49447480 is an apocalyptic number.

49447480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49447480 is an abundant number, since it is smaller than the sum of its proper divisors (65401160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49447480 is a wasteful number, since it uses less digits than its factorization.

49447480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39919 (or 39915 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 49447480 is about 7031.8902152977. The cubic root of 49447480 is about 367.0411197606.

It can be divided in two parts, 494 and 47480, that added together give a palindrome (47974).

The spelling of 49447480 in words is "forty-nine million, four hundred forty-seven thousand, four hundred eighty".