2720401 has 8 divisors (see below), whose sum is σ = 2907680. Its totient is φ = 2537568.

The previous prime is 2720387. The next prime is 2720411. The reversal of 2720401 is 1040272.

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

It is a cyclic number.

It is not a de Polignac number, because 2720401 - 2⁷ = 2720273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (363460).

2^2720401 is an apocalyptic number.

It is an amenable number.

2720401 is a deficient number, since it is larger than the sum of its proper divisors (187279).

2720401 is a wasteful number, since it uses less digits than its factorization.

2720401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2720401 is about 1649.3638167487. The cubic root of 2720401 is about 139.5975003863.

Adding to 2720401 its reverse (1040272), we get a palindrome (3760673).

The spelling of 2720401 in words is "two million, seven hundred twenty thousand, four hundred one".