2430020402 has 4 divisors (see below), whose sum is σ = 3645030606. Its totient is φ = 1215010200.

The previous prime is 2430020401. The next prime is 2430020441. The reversal of 2430020402 is 2040200342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2040200342 = 2 ⋅1020100171.

It can be written as a sum of positive squares in only one way, i.e., 2406000601 + 24019801 = 49051^2 + 4901^2 .

It is not an unprimeable number, because it can be changed into a prime (2430020401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607505099 + ... + 607505102.

Almost surely, 2^2430020402 is an apocalyptic number.

2430020402 is a deficient number, since it is larger than the sum of its proper divisors (1215010204).

2430020402 is a wasteful number, since it uses less digits than its factorization.

2430020402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215010203.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2430020402 is about 49295.2371127272. The cubic root of 2430020402 is about 1344.4251864924.

Adding to 2430020402 its reverse (2040200342), we get a palindrome (4470220744).

The spelling of 2430020402 in words is "two billion, four hundred thirty million, twenty thousand, four hundred two".