723801042 has 16 divisors (see below), whose sum is σ = 1608446880. Its totient is φ = 241266996.

The previous prime is 723801041. The next prime is 723801097. The reversal of 723801042 is 240108327.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 723800997 and 723801015.

It is not an unprimeable number, because it can be changed into a prime (723801041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6701808 + ... + 6701915.

It is an arithmetic number, because the mean of its divisors is an integer number (100527930).

Almost surely, 2^723801042 is an apocalyptic number.

723801042 is an abundant number, since it is smaller than the sum of its proper divisors (884645838).

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

723801042 is a wasteful number, since it uses less digits than its factorization.

723801042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13403734 (or 13403728 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 723801042 is about 26903.5507321989. The cubic root of 723801042 is about 897.8554048498.

Adding to 723801042 its reverse (240108327), we get a palindrome (963909369).

The spelling of 723801042 in words is "seven hundred twenty-three million, eight hundred one thousand, forty-two".