47272720 has 40 divisors (see below), whose sum is σ = 119903040. Its totient is φ = 17189760.

The previous prime is 47272681. The next prime is 47272739. The reversal of 47272720 is 2727274.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25980 + ... + 27739.

It is an arithmetic number, because the mean of its divisors is an integer number (2997576).

Almost surely, 2^47272720 is an apocalyptic number.

47272720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47272720 is an abundant number, since it is smaller than the sum of its proper divisors (72630320).

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

47272720 is a wasteful number, since it uses less digits than its factorization.

47272720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53743 (or 53737 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 47272720 is about 6875.5159806374. The cubic root of 47272720 is about 361.5792757721.

Adding to 47272720 its reverse (2727274), we get a palindrome (49999994).

It can be divided in two parts, 4727 and 2720, that added together give a palindrome (7447).

The spelling of 47272720 in words is "forty-seven million, two hundred seventy-two thousand, seven hundred twenty".