47347040 has 144 divisors (see below), whose sum is σ = 129493728. Its totient is φ = 16293888.

The previous prime is 47347039. The next prime is 47347049. The reversal of 47347040 is 4074374.

It is a junction number, because it is equal to n+sod(n) for n = 47346994 and 47347012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47347049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459629 + ... + 459731.

It is an arithmetic number, because the mean of its divisors is an integer number (899262).

Almost surely, 2^47347040 is an apocalyptic number.

47347040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47347040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64746864).

47347040 is an abundant number, since it is smaller than the sum of its proper divisors (82146688).

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

47347040 is a wasteful number, since it uses less digits than its factorization.

47347040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 47347040 is about 6880.9185433342. The cubic root of 47347040 is about 361.7686626705.

The spelling of 47347040 in words is "forty-seven million, three hundred forty-seven thousand, forty".