72644062 has 8 divisors (see below), whose sum is σ = 109057896. Its totient is φ = 36291432.

The previous prime is 72644053. The next prime is 72644063. The reversal of 72644062 is 26044627.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72644063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12208 + ... + 17155.

It is an arithmetic number, because the mean of its divisors is an integer number (13632237).

Almost surely, 2^72644062 is an apocalyptic number.

72644062 is a deficient number, since it is larger than the sum of its proper divisors (36413834).

72644062 is a wasteful number, since it uses less digits than its factorization.

72644062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30602.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 72644062 is about 8523.1485966162. The cubic root of 72644062 is about 417.2535497933.

Adding to 72644062 its reverse (26044627), we get a palindrome (98688689).

The spelling of 72644062 in words is "seventy-two million, six hundred forty-four thousand, sixty-two".