472621281 has 24 divisors (see below), whose sum is σ = 695077152. Its totient is φ = 285436800.

The previous prime is 472621249. The next prime is 472621307. The reversal of 472621281 is 182126274.

It is not a de Polignac number, because 472621281 - 2⁵ = 472621249 is a prime.

It is a super-2 number, since 2×472621281² = 446741750508161922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (472621241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109321 + ... + 113561.

It is an arithmetic number, because the mean of its divisors is an integer number (28961548).

Almost surely, 2^472621281 is an apocalyptic number.

It is an amenable number.

472621281 is a deficient number, since it is larger than the sum of its proper divisors (222455871).

472621281 is a wasteful number, since it uses less digits than its factorization.

472621281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573 (or 4562 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 472621281 is about 21739.8546683275. The cubic root of 472621281 is about 778.9407498812.

The spelling of 472621281 in words is "four hundred seventy-two million, six hundred twenty-one thousand, two hundred eighty-one".