47208540 has 48 divisors (see below), whose sum is σ = 139144320. Its totient is φ = 11926080.

The previous prime is 47208533. The next prime is 47208547. The reversal of 47208540 is 4580274.

It is an interprime number because it is at equal distance from previous prime (47208533) and next prime (47208547).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 47208498 and 47208507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47208547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19566 + ... + 21845.

It is an arithmetic number, because the mean of its divisors is an integer number (2898840).

Almost surely, 2^47208540 is an apocalyptic number.

It is an amenable number.

47208540 is an abundant number, since it is smaller than the sum of its proper divisors (91935780).

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

47208540 is a wasteful number, since it uses less digits than its factorization.

47208540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41442 (or 41440 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 47208540 is about 6870.8471093454. The cubic root of 47208540 is about 361.4155684738.

The spelling of 47208540 in words is "forty-seven million, two hundred eight thousand, five hundred forty".