20142204023340 has 384 divisors, whose sum is σ = 73691735040000. Its totient is φ = 4471735548672.

The previous prime is 20142204023339. The next prime is 20142204023353. The reversal of 20142204023340 is 4332040224102.

20142204023340 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 220 + 402 + 3 + 34 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28748511 + ... + 29440809.

It is an arithmetic number, because the mean of its divisors is an integer number (191905560000).

Almost surely, 2^{20142204023340} is an apocalyptic number.

20142204023340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20142204023340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36845867520000).

20142204023340 is an abundant number, since it is smaller than the sum of its proper divisors (53549531016660).

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

20142204023340 is a wasteful number, since it uses less digits than its factorization.

20142204023340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692546 (or 692538 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20142204023340 its reverse (4332040224102), we get a palindrome (24474244247442).

The spelling of 20142204023340 in words is "twenty trillion, one hundred forty-two billion, two hundred four million, twenty-three thousand, three hundred forty".