472739149 has 4 divisors (see below), whose sum is σ = 473036764. Its totient is φ = 472441536.

The previous prime is 472739147. The next prime is 472739153. The reversal of 472739149 is 941937274.

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

It can be written as a sum of positive squares in 2 ways, for example, as 335146249 + 137592900 = 18307^2 + 11730^2 .

It is a cyclic number.

It is not a de Polignac number, because 472739149 - 2¹ = 472739147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 472739099 and 472739108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472739147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146412 + ... + 149605.

It is an arithmetic number, because the mean of its divisors is an integer number (118259191).

Almost surely, 2^472739149 is an apocalyptic number.

It is an amenable number.

472739149 is a deficient number, since it is larger than the sum of its proper divisors (297615).

472739149 is a wasteful number, since it uses less digits than its factorization.

472739149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297614.

The product of its digits is 381024, while the sum is 46.

The square root of 472739149 is about 21742.5653730189. The cubic root of 472739149 is about 779.0054983812.

The spelling of 472739149 in words is "four hundred seventy-two million, seven hundred thirty-nine thousand, one hundred forty-nine".