47420838 has 24 divisors (see below), whose sum is σ = 104933088. Its totient is φ = 15470352.

The previous prime is 47420833. The next prime is 47420839. The reversal of 47420838 is 83802474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47420831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27181 + ... + 28872.

It is an arithmetic number, because the mean of its divisors is an integer number (4372212).

Almost surely, 2^47420838 is an apocalyptic number.

47420838 is an abundant number, since it is smaller than the sum of its proper divisors (57512250).

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

47420838 is a wasteful number, since it uses less digits than its factorization.

47420838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56108 (or 56105 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 47420838 is about 6886.2789661761. The cubic root of 47420838 is about 361.9565233746.

It can be divided in two parts, 474 and 20838, that added together give a palindrome (21312).

The spelling of 47420838 in words is "forty-seven million, four hundred twenty thousand, eight hundred thirty-eight".