72002270 has 8 divisors (see below), whose sum is σ = 129604104. Its totient is φ = 28800904.

The previous prime is 72002257. The next prime is 72002279. The reversal of 72002270 is 7220027.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72002279) 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, 3600104 + ... + 3600123.

It is an arithmetic number, because the mean of its divisors is an integer number (16200513).

Almost surely, 2^72002270 is an apocalyptic number.

72002270 is a deficient number, since it is larger than the sum of its proper divisors (57601834).

72002270 is a wasteful number, since it uses less digits than its factorization.

72002270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7200234.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 72002270 is about 8485.4151342171. The cubic root of 72002270 is about 416.0211365925.

Adding to 72002270 its reverse (7220027), we get a palindrome (79222297).

The spelling of 72002270 in words is "seventy-two million, two thousand, two hundred seventy".