724673146 has 4 divisors (see below), whose sum is σ = 1087009722. Its totient is φ = 362336572.

The previous prime is 724673137. The next prime is 724673149. The reversal of 724673146 is 641376427.

724673146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 696168225 + 28504921 = 26385^2 + 5339^2 .

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 junction number, because it is equal to n+sod(n) for n = 724673099 and 724673108.

It is not an unprimeable number, because it can be changed into a prime (724673149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181168285 + ... + 181168288.

Almost surely, 2^724673146 is an apocalyptic number.

724673146 is a deficient number, since it is larger than the sum of its proper divisors (362336576).

724673146 is a wasteful number, since it uses less digits than its factorization.

724673146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362336575.

The product of its digits is 169344, while the sum is 40.

The square root of 724673146 is about 26919.7538250260. The cubic root of 724673146 is about 898.2158671721.

The spelling of 724673146 in words is "seven hundred twenty-four million, six hundred seventy-three thousand, one hundred forty-six".