30202442420 has 48 divisors (see below), whose sum is σ = 67171981968. Its totient is φ = 11367628800.

The previous prime is 30202442407. The next prime is 30202442443. The reversal of 30202442420 is 2424420203.

It can be written as a sum of positive squares in 8 ways, for example, as 8514724 + 30193927696 = 2918^2 + 173764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1964684 + ... + 1979996.

It is an arithmetic number, because the mean of its divisors is an integer number (1399416291).

Almost surely, 2^30202442420 is an apocalyptic number.

It is an amenable number.

30202442420 is an abundant number, since it is smaller than the sum of its proper divisors (36969539548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30202442420 is a wasteful number, since it uses less digits than its factorization.

30202442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21140 (or 21138 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 30202442420 its reverse (2424420203), we get a palindrome (32626862623).

The spelling of 30202442420 in words is "thirty billion, two hundred two million, four hundred forty-two thousand, four hundred twenty".