30142400022 has 64 divisors (see below), whose sum is σ = 76665853440. Its totient is φ = 8599320288.

The previous prime is 30142400017. The next prime is 30142400023. The reversal of 30142400022 is 22000424103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30142399968 and 30142400004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142400023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197013 + ... + 314799.

It is an arithmetic number, because the mean of its divisors is an integer number (1197903960).

Almost surely, 2^30142400022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30142400022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38332926720).

30142400022 is an abundant number, since it is smaller than the sum of its proper divisors (46523453418).

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

30142400022 is a wasteful number, since it uses less digits than its factorization.

30142400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118482 (or 118476 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30142400022 its reverse (22000424103), we get a palindrome (52142824125).

The spelling of 30142400022 in words is "thirty billion, one hundred forty-two million, four hundred thousand, twenty-two".