47448240 has 160 divisors (see below), whose sum is σ = 171227136. Its totient is φ = 10644480.

The previous prime is 47448217. The next prime is 47448251. The reversal of 47448240 is 4284474.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102249 + ... + 102711.

Almost surely, 2^47448240 is an apocalyptic number.

47448240 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 47448240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85613568).

47448240 is an abundant number, since it is smaller than the sum of its proper divisors (123778896).

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

47448240 is a wasteful number, since it uses less digits than its factorization.

47448240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 47448240 is about 6888.2682874580. The cubic root of 47448240 is about 362.0262284751.

The spelling of 47448240 in words is "forty-seven million, four hundred forty-eight thousand, two hundred forty".