47280406 has 4 divisors (see below), whose sum is σ = 70920612. Its totient is φ = 23640202.

The previous prime is 47280403. The next prime is 47280407. The reversal of 47280406 is 60408274.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47280403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11820100 + ... + 11820103.

It is an arithmetic number, because the mean of its divisors is an integer number (17730153).

Almost surely, 2^47280406 is an apocalyptic number.

47280406 is a deficient number, since it is larger than the sum of its proper divisors (23640206).

47280406 is a wasteful number, since it uses less digits than its factorization.

47280406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23640205.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 47280406 is about 6876.0748977887. The cubic root of 47280406 is about 361.5988709192.

The spelling of 47280406 in words is "forty-seven million, two hundred eighty thousand, four hundred six".