47001240 has 288 divisors, whose sum is σ = 182997360. Its totient is φ = 10391040.

The previous prime is 47001221. The next prime is 47001263. The reversal of 47001240 is 4210074.

It is a happy number.

47001240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 566239 + ... + 566321.

Almost surely, 2^47001240 is an apocalyptic number.

47001240 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 47001240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91498680).

47001240 is an abundant number, since it is smaller than the sum of its proper divisors (135996120).

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

47001240 is a wasteful number, since it uses less digits than its factorization.

47001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 47001240 is about 6855.7450360993. The cubic root of 47001240 is about 360.8857817053.

The spelling of 47001240 in words is "forty-seven million, one thousand, two hundred forty".