2402340521 has 8 divisors (see below), whose sum is σ = 2747842944. Its totient is φ = 2057415840.

The previous prime is 2402340497. The next prime is 2402340527. The reversal of 2402340521 is 1250432042.

It is a happy number.

2402340521 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2402340521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2402340527) 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, 135485 + ... + 152186.

It is an arithmetic number, because the mean of its divisors is an integer number (343480368).

Almost surely, 2^2402340521 is an apocalyptic number.

It is an amenable number.

2402340521 is a deficient number, since it is larger than the sum of its proper divisors (345502423).

2402340521 is a wasteful number, since it uses less digits than its factorization.

2402340521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288871.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2402340521 is about 49013.6768769698. The cubic root of 2402340521 is about 1339.3009870596.

Adding to 2402340521 its reverse (1250432042), we get a palindrome (3652772563).

The spelling of 2402340521 in words is "two billion, four hundred two million, three hundred forty thousand, five hundred twenty-one".