47304540 has 96 divisors (see below), whose sum is σ = 155856960. Its totient is φ = 11870208.

The previous prime is 47304533. The next prime is 47304541. The reversal of 47304540 is 4540374.

It is a super-2 number, since 2×47304540² = 4475439009223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47304541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6604 + ... + 11756.

It is an arithmetic number, because the mean of its divisors is an integer number (1623510).

Almost surely, 2^47304540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47304540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77928480).

47304540 is an abundant number, since it is smaller than the sum of its proper divisors (108552420).

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

47304540 is a wasteful number, since it uses less digits than its factorization.

47304540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188 (or 5180 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 47304540 is about 6877.8295995176. The cubic root of 47304540 is about 361.6603857796.

The spelling of 47304540 in words is "forty-seven million, three hundred four thousand, five hundred forty".