72334642 has 16 divisors (see below), whose sum is σ = 112593240. Its totient is φ = 34811392.

The previous prime is 72334631. The next prime is 72334651. The reversal of 72334642 is 24643327.

It can be written as a sum of positive squares in 4 ways, for example, as 67716441 + 4618201 = 8229^2 + 2149^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18708 + ... + 22240.

Almost surely, 2^72334642 is an apocalyptic number.

72334642 is a deficient number, since it is larger than the sum of its proper divisors (40258598).

72334642 is a wasteful number, since it uses less digits than its factorization.

72334642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917.

The product of its digits is 24192, while the sum is 31.

The square root of 72334642 is about 8504.9774838032. The cubic root of 72334642 is about 416.6602903202.

Adding to 72334642 its reverse (24643327), we get a palindrome (96977969).

The spelling of 72334642 in words is "seventy-two million, three hundred thirty-four thousand, six hundred forty-two".