47232720 has 200 divisors, whose sum is σ = 169335144. Its totient is φ = 12192768.

The previous prime is 47232719. The next prime is 47232761. The reversal of 47232720 is 2723274.

It can be written as a sum of positive squares in 4 ways, for example, as 27625536 + 19607184 = 5256^2 + 4428^2 .

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, 239662 + ... + 239858.

Almost surely, 2^47232720 is an apocalyptic number.

47232720 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 47232720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84667572).

47232720 is an abundant number, since it is smaller than the sum of its proper divisors (122102424).

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

47232720 is a wasteful number, since it uses less digits than its factorization.

47232720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 47232720 is about 6872.6064924452. The cubic root of 47232720 is about 361.4772630799.

Adding to 47232720 its reverse (2723274), we get a palindrome (49955994).

The spelling of 47232720 in words is "forty-seven million, two hundred thirty-two thousand, seven hundred twenty".