72325642 has 8 divisors (see below), whose sum is σ = 109484100. Its totient is φ = 35830944.

The previous prime is 72325637. The next prime is 72325651. The reversal of 72325642 is 24652327.

It can be written as a sum of positive squares in 2 ways, for example, as 66080641 + 6245001 = 8129^2 + 2499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165667 + ... + 166102.

Almost surely, 2^72325642 is an apocalyptic number.

72325642 is a deficient number, since it is larger than the sum of its proper divisors (37158458).

72325642 is a wasteful number, since it uses less digits than its factorization.

72325642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331880.

The product of its digits is 20160, while the sum is 31.

The square root of 72325642 is about 8504.4483654144. The cubic root of 72325642 is about 416.6430090746.

Adding to 72325642 its reverse (24652327), we get a palindrome (96977969).

The spelling of 72325642 in words is "seventy-two million, three hundred twenty-five thousand, six hundred forty-two".