72353042 has 4 divisors (see below), whose sum is σ = 108529566. Its totient is φ = 36176520.

The previous prime is 72353041. The next prime is 72353051. The reversal of 72353042 is 24035327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58507201 + 13845841 = 7649^2 + 3721^2 .

It is not an unprimeable number, because it can be changed into a prime (72353041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18088259 + ... + 18088262.

Almost surely, 2^72353042 is an apocalyptic number.

72353042 is a deficient number, since it is larger than the sum of its proper divisors (36176524).

72353042 is a wasteful number, since it uses less digits than its factorization.

72353042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36176523.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 72353042 is about 8506.0591345229. The cubic root of 72353042 is about 416.6956164063.

Adding to 72353042 its reverse (24035327), we get a palindrome (96388369).

The spelling of 72353042 in words is "seventy-two million, three hundred fifty-three thousand, forty-two".