2728499040 has 96 divisors (see below), whose sum is σ = 9549761760. Its totient is φ = 727598592.

The previous prime is 2728499021. The next prime is 2728499051. The reversal of 2728499040 is 409948272.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2728499040² = 14889414022561843200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311479 + ... + 320118.

It is an arithmetic number, because the mean of its divisors is an integer number (99476685).

Almost surely, 2^2728499040 is an apocalyptic number.

2728499040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2728499040 is an abundant number, since it is smaller than the sum of its proper divisors (6821262720).

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

2728499040 is a wasteful number, since it uses less digits than its factorization.

2728499040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631621 (or 631607 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2728499040 is about 52235.0365176478. The cubic root of 2728499040 is about 1397.3588026439.

The spelling of 2728499040 in words is "two billion, seven hundred twenty-eight million, four hundred ninety-nine thousand, forty".