47420824 has 32 divisors (see below), whose sum is σ = 100131840. Its totient is φ = 20858400.

The previous prime is 47420809. The next prime is 47420831. The reversal of 47420824 is 42802474.

47420824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5964 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (3129120).

Almost surely, 2^47420824 is an apocalyptic number.

47420824 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

47420824 is an abundant number, since it is smaller than the sum of its proper divisors (52711016).

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

47420824 is a wasteful number, since it uses less digits than its factorization.

47420824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431 (or 17427 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 47420824 is about 6886.2779496619. The cubic root of 47420824 is about 361.9564877546.

The spelling of 47420824 in words is "forty-seven million, four hundred twenty thousand, eight hundred twenty-four".