47712240 has 200 divisors, whose sum is σ = 171045600. Its totient is φ = 12317184.

The previous prime is 47712229. The next prime is 47712253. The reversal of 47712240 is 4221774.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 239661 + ... + 239859.

It is an arithmetic number, because the mean of its divisors is an integer number (855228).

Almost surely, 2^47712240 is an apocalyptic number.

47712240 is a gapful number since it is divisible by the number (40) 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 47712240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85522800).

47712240 is an abundant number, since it is smaller than the sum of its proper divisors (123333360).

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

47712240 is a wasteful number, since it uses less digits than its factorization.

47712240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 47712240 is about 6907.4047224699. The cubic root of 47712240 is about 362.6964199085.

The spelling of 47712240 in words is "forty-seven million, seven hundred twelve thousand, two hundred forty".