723326042 has 4 divisors (see below), whose sum is σ = 1084989066. Its totient is φ = 361663020.

The previous prime is 723325969. The next prime is 723326053. The reversal of 723326042 is 240623327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240623327 = 7 ⋅34374761.

It can be written as a sum of positive squares in only one way, i.e., 722588161 + 737881 = 26881^2 + 859^2 .

It is a super-3 number, since 3×723326042³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 723325996 and 723326014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180831509 + ... + 180831512.

Almost surely, 2^723326042 is an apocalyptic number.

723326042 is a deficient number, since it is larger than the sum of its proper divisors (361663024).

723326042 is a wasteful number, since it uses less digits than its factorization.

723326042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361663023.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 723326042 is about 26894.7214523594. The cubic root of 723326042 is about 897.6589536980.

Adding to 723326042 its reverse (240623327), we get a palindrome (963949369).

The spelling of 723326042 in words is "seven hundred twenty-three million, three hundred twenty-six thousand, forty-two".