2396478721 has 48 divisors (see below), whose sum is σ = 3297974400. Its totient is φ = 1718019072.

The previous prime is 2396478647. The next prime is 2396478731. The reversal of 2396478721 is 1278746932.

It is a happy number.

2396478721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2396478721 - 2⁹ = 2396478209 is a prime.

It is a super-2 number, since 2×2396478721² = 11486220520411591682, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (2396478731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274065 + ... + 282673.

It is an arithmetic number, because the mean of its divisors is an integer number (68707800).

Almost surely, 2^2396478721 is an apocalyptic number.

It is an amenable number.

2396478721 is a deficient number, since it is larger than the sum of its proper divisors (901495679).

2396478721 is a wasteful number, since it uses less digits than its factorization.

2396478721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8678 (or 8671 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The square root of 2396478721 is about 48953.8427602982. The cubic root of 2396478721 is about 1338.2107851680.

The spelling of 2396478721 in words is "two billion, three hundred ninety-six million, four hundred seventy-eight thousand, seven hundred twenty-one".