47273520 has 160 divisors (see below), whose sum is σ = 176417280. Its totient is φ = 10229760.

The previous prime is 47273519. The next prime is 47273537. The reversal of 47273520 is 2537274.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31180 + ... + 32660.

It is an arithmetic number, because the mean of its divisors is an integer number (1102608).

Almost surely, 2^47273520 is an apocalyptic number.

47273520 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 47273520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88208640).

47273520 is an abundant number, since it is smaller than the sum of its proper divisors (129143760).

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

47273520 is a wasteful number, since it uses less digits than its factorization.

47273520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 47273520 is about 6875.5741578431. The cubic root of 47273520 is about 361.5813154389.

The spelling of 47273520 in words is "forty-seven million, two hundred seventy-three thousand, five hundred twenty".