2402056720449 has 9 divisors (see below), whose sum is σ = 3469644201153. Its totient is φ = 1601368047252.

The previous prime is 2402056720391. The next prime is 2402056720487. The reversal of 2402056720449 is 9440276502042.

The square root of 2402056720449 is 1549857.

It is a perfect power (a square), and thus also a powerful number.

2402056720449 is a `hidden beast` number, since 2 + 4 + 0 + 20 + 567 + 20 + 4 + 49 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2402056720449 - 2³¹ = 2399909236801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2402056720549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4391262 + ... + 4907880.

Almost surely, 2^{2402056720449} is an apocalyptic number.

2402056720449 is the 1549857-th square number.

2402056720449 is the 774929-th centered octagonal number.

It is an amenable number.

2402056720449 is a deficient number, since it is larger than the sum of its proper divisors (1067587480704).

2402056720449 is an frugal number, since it uses more digits than its factorization.

2402056720449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033244 (or 516622 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 2402056720449 in words is "two trillion, four hundred two billion, fifty-six million, seven hundred twenty thousand, four hundred forty-nine".