47744424 has 192 divisors, whose sum is σ = 166622400. Its totient is φ = 12555648.

The previous prime is 47744423. The next prime is 47744441. The reversal of 47744424 is 42444774.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (47744423) 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 47 ways as a sum of consecutive naturals, for example, 137419 + ... + 137765.

It is an arithmetic number, because the mean of its divisors is an integer number (867825).

Almost surely, 2^47744424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47744424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83311200).

47744424 is an abundant number, since it is smaller than the sum of its proper divisors (118877976).

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

47744424 is a wasteful number, since it uses less digits than its factorization.

47744424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 372 counting only the distinct ones).

The product of its digits is 100352, while the sum is 36.

The square root of 47744424 is about 6909.7340035634. The cubic root of 47744424 is about 362.7779531301. Note that the first 3 decimals are identical.

The spelling of 47744424 in words is "forty-seven million, seven hundred forty-four thousand, four hundred twenty-four".