47840430 has 64 divisors (see below), whose sum is σ = 129600000. Its totient is φ = 11195520.

The previous prime is 47840417. The next prime is 47840509. The reversal of 47840430 is 3404874.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7071 + ... + 12069.

It is an arithmetic number, because the mean of its divisors is an integer number (2025000).

Almost surely, 2^47840430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47840430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64800000).

47840430 is an abundant number, since it is smaller than the sum of its proper divisors (81759570).

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

47840430 is a wasteful number, since it uses less digits than its factorization.

47840430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049.

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

The square root of 47840430 is about 6916.6776706740. The cubic root of 47840430 is about 363.0209521256.

Subtracting from 47840430 its reverse (3404874), we obtain a square (44435556 = 6666²).

The spelling of 47840430 in words is "forty-seven million, eight hundred forty thousand, four hundred thirty".