47837340 has 72 divisors (see below), whose sum is σ = 149804928. Its totient is φ = 12343680.

The previous prime is 47837329. The next prime is 47837341. The reversal of 47837340 is 4373874.

It is a super-2 number, since 2×47837340² = 4576822196551200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47837295 and 47837304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47837341) 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, 1294 + ... + 9866.

It is an arithmetic number, because the mean of its divisors is an integer number (2080624).

Almost surely, 2^47837340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47837340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74902464).

47837340 is an abundant number, since it is smaller than the sum of its proper divisors (101967588).

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

47837340 is a wasteful number, since it uses less digits than its factorization.

47837340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8619 (or 8614 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 47837340 is about 6916.4542939284. The cubic root of 47837340 is about 363.0131361501.

The spelling of 47837340 in words is "forty-seven million, eight hundred thirty-seven thousand, three hundred forty".