4000272 has 20 divisors (see below), whose sum is σ = 10334160. Its totient is φ = 1333408.

The previous prime is 4000267. The next prime is 4000273. The reversal of 4000272 is 2720004.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4000273) 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, 41622 + ... + 41717.

It is an arithmetic number, because the mean of its divisors is an integer number (516708).

Almost surely, 2^4000272 is an apocalyptic number.

It is an amenable number.

4000272 is an abundant number, since it is smaller than the sum of its proper divisors (6333888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4000272 is a wasteful number, since it uses less digits than its factorization.

4000272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83350 (or 83344 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 4000272 is about 2000.0679988440. The cubic root of 4000272 is about 158.7437032243.

Adding to 4000272 its reverse (2720004), we get a palindrome (6720276).

The spelling of 4000272 in words is "four million, two hundred seventy-two", and thus it is an aban number.