2720236 has 6 divisors (see below), whose sum is σ = 4760420. Its totient is φ = 1360116.

The previous prime is 2720197. The next prime is 2720239. The reversal of 2720236 is 6320272.

It is not an unprimeable number, because it can be changed into a prime (2720239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340026 + ... + 340033.

2^2720236 is an apocalyptic number.

It is an amenable number.

2720236 is a deficient number, since it is larger than the sum of its proper divisors (2040184).

2720236 is a wasteful number, since it uses less digits than its factorization.

2720236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680063 (or 680061 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 2720236 is about 1649.3137967046. The cubic root of 2720236 is about 139.5946780017.

The spelling of 2720236 in words is "two million, seven hundred twenty thousand, two hundred thirty-six".