47405280 has 192 divisors, whose sum is σ = 164602368. Its totient is φ = 11397120.

The previous prime is 47405279. The next prime is 47405297. The reversal of 47405280 is 8250474.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 442987 + ... + 443093.

It is an arithmetic number, because the mean of its divisors is an integer number (857304).

Almost surely, 2^47405280 is an apocalyptic number.

47405280 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 47405280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82301184).

47405280 is an abundant number, since it is smaller than the sum of its proper divisors (117197088).

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

47405280 is a wasteful number, since it uses less digits than its factorization.

47405280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 47405280 is about 6885.1492358554. The cubic root of 47405280 is about 361.9169350432.

The spelling of 47405280 in words is "forty-seven million, four hundred five thousand, two hundred eighty".