30021402400 has 72 divisors (see below), whose sum is σ = 79952476464. Its totient is φ = 10916870400.

The previous prime is 30021402391. The next prime is 30021402413. The reversal of 30021402400 is 420412003.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1696962 + ... + 1714561.

It is an arithmetic number, because the mean of its divisors is an integer number (1110451062).

Almost surely, 2^30021402400 is an apocalyptic number.

It is an amenable number.

30021402400 is an abundant number, since it is smaller than the sum of its proper divisors (49931074064).

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

30021402400 is a wasteful number, since it uses less digits than its factorization.

30021402400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411554 (or 3411541 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30021402400 its reverse (420412003), we get a palindrome (30441814403).

The spelling of 30021402400 in words is "thirty billion, twenty-one million, four hundred two thousand, four hundred".