472142449 has 4 divisors (see below), whose sum is σ = 472939236. Its totient is φ = 471345664.

The previous prime is 472142443. The next prime is 472142453. The reversal of 472142449 is 944241274.

It is a happy number.

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 413390224 + 58752225 = 20332^2 + 7665^2 .

It is a cyclic number.

It is not a de Polignac number, because 472142449 - 2²¹ = 470045297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472142443) 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, 397504 + ... + 398689.

It is an arithmetic number, because the mean of its divisors is an integer number (118234809).

Almost surely, 2^472142449 is an apocalyptic number.

It is an amenable number.

472142449 is a deficient number, since it is larger than the sum of its proper divisors (796787).

472142449 is an equidigital number, since it uses as much as digits as its factorization.

472142449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796786.

The product of its digits is 64512, while the sum is 37.

The square root of 472142449 is about 21728.8391084291. The cubic root of 472142449 is about 778.6776020543.

The spelling of 472142449 in words is "four hundred seventy-two million, one hundred forty-two thousand, four hundred forty-nine".