2720536 has 64 divisors (see below), whose sum is σ = 6511680. Its totient is φ = 1036800.

The previous prime is 2720513. The next prime is 2720551. The reversal of 2720536 is 6350272.

It is a super-2 number, since 2×2720536² = 14802632254592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2720536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26886 + ... + 26986.

It is an arithmetic number, because the mean of its divisors is an integer number (101745).

2^2720536 is an apocalyptic number.

2720536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2720536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3255840).

2720536 is an abundant number, since it is smaller than the sum of its proper divisors (3791144).

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

2720536 is a wasteful number, since it uses less digits than its factorization.

2720536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2720536 is about 1649.4047411112. The cubic root of 2720536 is about 139.5998095251.

The spelling of 2720536 in words is "two million, seven hundred twenty thousand, five hundred thirty-six".