723454040 has 32 divisors (see below), whose sum is σ = 1723524480. Its totient is φ = 272358912.

The previous prime is 723454027. The next prime is 723454073. The reversal of 723454040 is 40454327.

It is a junction number, because it is equal to n+sod(n) for n = 723453994 and 723454012.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 531272 + ... + 532631.

It is an arithmetic number, because the mean of its divisors is an integer number (53860140).

Almost surely, 2^723454040 is an apocalyptic number.

It is an amenable number.

723454040 is an abundant number, since it is smaller than the sum of its proper divisors (1000070440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723454040 is a wasteful number, since it uses less digits than its factorization.

723454040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063931 (or 1063927 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 723454040 is about 26897.1009590253. The cubic root of 723454040 is about 897.7118997497.

The spelling of 723454040 in words is "seven hundred twenty-three million, four hundred fifty-four thousand, forty".