472409149 has 4 divisors (see below), whose sum is σ = 472457664. Its totient is φ = 472360636.

The previous prime is 472409143. The next prime is 472409183. The reversal of 472409149 is 941904274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 472409149 - 2¹⁵ = 472376381 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472409143) 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 3 ways as a sum of consecutive naturals, for example, 4027 + ... + 31000.

It is an arithmetic number, because the mean of its divisors is an integer number (118114416).

Almost surely, 2^472409149 is an apocalyptic number.

It is an amenable number.

472409149 is a deficient number, since it is larger than the sum of its proper divisors (48515).

472409149 is a wasteful number, since it uses less digits than its factorization.

472409149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48514.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 472409149 is about 21734.9752472829. The cubic root of 472409149 is about 778.8241921539.

The spelling of 472409149 in words is "four hundred seventy-two million, four hundred nine thousand, one hundred forty-nine".