723154228 has 24 divisors (see below), whose sum is σ = 1372649544. Its totient is φ = 332006400.

The previous prime is 723154219. The next prime is 723154273. The reversal of 723154228 is 822451327.

It is a happy number.

723154228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 179238544 + 543915684 = 13388^2 + 23322^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 723154193 and 723154202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126903 + ... + 132478.

It is an arithmetic number, because the mean of its divisors is an integer number (57193731).

Almost surely, 2^723154228 is an apocalyptic number.

It is an amenable number.

723154228 is a deficient number, since it is larger than the sum of its proper divisors (649495316).

723154228 is a wasteful number, since it uses less digits than its factorization.

723154228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259443 (or 259441 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 723154228 is about 26891.5270670894. The cubic root of 723154228 is about 897.5878734475.

The spelling of 723154228 in words is "seven hundred twenty-three million, one hundred fifty-four thousand, two hundred twenty-eight".