2402696721 has 8 divisors (see below), whose sum is σ = 3206015104. Its totient is φ = 1600588080.

The previous prime is 2402696711. The next prime is 2402696789. The reversal of 2402696721 is 1276962042.

2402696721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2402696721 - 2⁵ = 2402696689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2402696721.

It is not an unprimeable number, because it can be changed into a prime (2402696711) 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, 297790 + ... + 305751.

It is an arithmetic number, because the mean of its divisors is an integer number (400751888).

Almost surely, 2^2402696721 is an apocalyptic number.

It is an amenable number.

2402696721 is a deficient number, since it is larger than the sum of its proper divisors (803318383).

2402696721 is a wasteful number, since it uses less digits than its factorization.

2402696721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604871.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 2402696721 is about 49017.3104219316. The cubic root of 2402696721 is about 1339.3671774312.

The spelling of 2402696721 in words is "two billion, four hundred two million, six hundred ninety-six thousand, seven hundred twenty-one".