2430040321 has 12 divisors (see below), whose sum is σ = 2673998320. Its totient is φ = 2202041160.

The previous prime is 2430040303. The next prime is 2430040331. The reversal of 2430040321 is 1230400342.

It is not a de Polignac number, because 2430040321 - 2⁹ = 2430039809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2430040331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110835 + ... + 130936.

Almost surely, 2^2430040321 is an apocalyptic number.

It is an amenable number.

2430040321 is a deficient number, since it is larger than the sum of its proper divisors (243957999).

2430040321 is a wasteful number, since it uses less digits than its factorization.

2430040321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241836 (or 241813 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2430040321 is about 49295.4391500877. The cubic root of 2430040321 is about 1344.4288599228.

Adding to 2430040321 its reverse (1230400342), we get a palindrome (3660440663).

The spelling of 2430040321 in words is "two billion, four hundred thirty million, forty thousand, three hundred twenty-one".