47140422 has 64 divisors (see below), whose sum is σ = 115375104. Its totient is φ = 12533760.

The previous prime is 47140421. The next prime is 47140441. The reversal of 47140422 is 22404174.

It is a junction number, because it is equal to n+sod(n) for n = 47140392 and 47140401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47140421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73222 + ... + 73862.

It is an arithmetic number, because the mean of its divisors is an integer number (1802736).

Almost surely, 2^47140422 is an apocalyptic number.

47140422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 47140422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57687552).

47140422 is an abundant number, since it is smaller than the sum of its proper divisors (68234682).

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

47140422 is a wasteful number, since it uses less digits than its factorization.

47140422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 47140422 is about 6865.8882892165. Note that the first 3 decimals coincide. The cubic root of 47140422 is about 361.2416539221.

Adding to 47140422 its reverse (22404174), we get a palindrome (69544596).

The spelling of 47140422 in words is "forty-seven million, one hundred forty thousand, four hundred twenty-two".