47382420 has 48 divisors (see below), whose sum is σ = 132991488. Its totient is φ = 12604800.

The previous prime is 47382397. The next prime is 47382427. The reversal of 47382420 is 2428374.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47382427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35770 + ... + 37070.

It is an arithmetic number, because the mean of its divisors is an integer number (2770656).

Almost surely, 2^47382420 is an apocalyptic number.

It is an amenable number.

47382420 is an abundant number, since it is smaller than the sum of its proper divisors (85609068).

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

47382420 is a wasteful number, since it uses less digits than its factorization.

47382420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 47382420 is about 6883.4889409369. The cubic root of 47382420 is about 361.8587505866.

The spelling of 47382420 in words is "forty-seven million, three hundred eighty-two thousand, four hundred twenty".