47704040 has 96 divisors (see below), whose sum is σ = 119040840. Its totient is φ = 17141760.

The previous prime is 47704039. The next prime is 47704061. The reversal of 47704040 is 4040774.

It can be written as a sum of positive squares in 4 ways, for example, as 44009956 + 3694084 = 6634^2 + 1922^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 653444 + ... + 653516.

Almost surely, 2^47704040 is an apocalyptic number.

47704040 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 47704040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59520420).

47704040 is an abundant number, since it is smaller than the sum of its proper divisors (71336800).

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

47704040 is a wasteful number, since it uses less digits than its factorization.

47704040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 47704040 is about 6906.8111310503. The cubic root of 47704040 is about 362.6756406072.

The spelling of 47704040 in words is "forty-seven million, seven hundred four thousand, forty".