47240 has 16 divisors (see below), whose sum is σ = 106380. Its totient is φ = 18880.

The previous prime is 47237. The next prime is 47251. The reversal of 47240 is 4274.

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 1444 = 214^2 + 38^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551 + ... + 630.

2⁴⁷²⁴⁰ is an apocalyptic number.

47240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47240 is an abundant number, since it is smaller than the sum of its proper divisors (59140).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53190).

47240 is a wasteful number, since it uses less digits than its factorization.

47240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 47240 is about 217.3476477904. The cubic root of 47240 is about 36.1495833676.

It can be divided in two parts, 472 and 40, that added together give a 9-th power (512 = 2⁹).

The spelling of 47240 in words is "forty-seven thousand, two hundred forty", and thus it is an iban number.