47144448 has 120 divisors (see below), whose sum is σ = 146714568. Its totient is φ = 14487552.

The previous prime is 47144443. The next prime is 47144467. The reversal of 47144448 is 84444174.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47144443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59511 + ... + 60297.

Almost surely, 2^47144448 is an apocalyptic number.

47144448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47144448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73357284).

47144448 is an abundant number, since it is smaller than the sum of its proper divisors (99570120).

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

47144448 is a wasteful number, since it uses less digits than its factorization.

47144448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 805 counting only the distinct ones).

The product of its digits is 57344, while the sum is 36.

The square root of 47144448 is about 6866.1814715313. The cubic root of 47144448 is about 361.2519375063.

The spelling of 47144448 in words is "forty-seven million, one hundred forty-four thousand, four hundred forty-eight".