2720924399 has 8 divisors (see below), whose sum is σ = 2783780160. Its totient is φ = 2658779136.

The previous prime is 2720924387. The next prime is 2720924411. The reversal of 2720924399 is 9934290272.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2720924387) and next prime (2720924411).

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 2720924399 - 2¹² = 2720920303 is a prime.

It is a super-2 number, since 2×2720924399² = 14806859170147022402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720924309) 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, 169874 + ... + 185199.

It is an arithmetic number, because the mean of its divisors is an integer number (347972520).

Almost surely, 2^2720924399 is an apocalyptic number.

2720924399 is a deficient number, since it is larger than the sum of its proper divisors (62855761).

2720924399 is an equidigital number, since it uses as much as digits as its factorization.

2720924399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355249.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 2720924399 is about 52162.4807596418. The cubic root of 2720924399 is about 1396.0645255996.

The spelling of 2720924399 in words is "two billion, seven hundred twenty million, nine hundred twenty-four thousand, three hundred ninety-nine".