47683440 has 120 divisors (see below), whose sum is σ = 183032928. Its totient is φ = 10897920.

The previous prime is 47683409. The next prime is 47683459. The reversal of 47683440 is 4438674.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 47683395 and 47683404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310 + ... + 9770.

Almost surely, 2^47683440 is an apocalyptic number.

47683440 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 47683440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91516464).

47683440 is an abundant number, since it is smaller than the sum of its proper divisors (135349488).

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

47683440 is a wasteful number, since it uses less digits than its factorization.

47683440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487 (or 9478 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 47683440 is about 6905.3196884721. The cubic root of 47683440 is about 362.6234284405.

The spelling of 47683440 in words is "forty-seven million, six hundred eighty-three thousand, four hundred forty".