47117040 has 80 divisors (see below), whose sum is σ = 147231648. Its totient is φ = 12464128.

The previous prime is 47117033. The next prime is 47117107. The reversal of 47117040 is 4071174.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 47117040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32164 + ... + 33596.

Almost surely, 2^47117040 is an apocalyptic number.

47117040 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 47117040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73615824).

47117040 is an abundant number, since it is smaller than the sum of its proper divisors (100114608).

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

47117040 is a wasteful number, since it uses less digits than its factorization.

47117040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 47117040 is about 6864.1853121838. The cubic root of 47117040 is about 361.1819178619.

The spelling of 47117040 in words is "forty-seven million, one hundred seventeen thousand, forty".