30400244421 has 16 divisors (see below), whose sum is σ = 40796797440. Its totient is φ = 20135349360.

The previous prime is 30400244389. The next prime is 30400244423. The reversal of 30400244421 is 12444200403.

It is a happy number.

It is not a de Polignac number, because 30400244421 - 2⁵ = 30400244389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30400244391 and 30400244400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400244423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613626 + ... + 1632356.

It is an arithmetic number, because the mean of its divisors is an integer number (2549799840).

Almost surely, 2^30400244421 is an apocalyptic number.

It is an amenable number.

30400244421 is a deficient number, since it is larger than the sum of its proper divisors (10396553019).

30400244421 is a wasteful number, since it uses less digits than its factorization.

30400244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22216.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 30400244421 its reverse (12444200403), we get a palindrome (42844444824).

The spelling of 30400244421 in words is "thirty billion, four hundred million, two hundred forty-four thousand, four hundred twenty-one".