723400041 has 32 divisors (see below), whose sum is σ = 1228066560. Its totient is φ = 368411904.

The previous prime is 723400033. The next prime is 723400103. The reversal of 723400041 is 140004327.

It is not a de Polignac number, because 723400041 - 2³ = 723400033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 723399990 and 723400017.

It is not an unprimeable number, because it can be changed into a prime (723400441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37770 + ... + 53603.

It is an arithmetic number, because the mean of its divisors is an integer number (38377080).

Almost surely, 2^723400041 is an apocalyptic number.

It is an amenable number.

723400041 is a deficient number, since it is larger than the sum of its proper divisors (504666519).

723400041 is a wasteful number, since it uses less digits than its factorization.

723400041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91425.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 723400041 is about 26896.0971332273. The cubic root of 723400041 is about 897.6895639604.

Adding to 723400041 its reverse (140004327), we get a palindrome (863404368).

The spelling of 723400041 in words is "seven hundred twenty-three million, four hundred thousand, forty-one".