20442134000 has 40 divisors (see below), whose sum is σ = 49429084848. Its totient is φ = 8176852800.

The previous prime is 20442133979. The next prime is 20442134039. The reversal of 20442134000 is 43124402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5108534 + ... + 5112533.

Almost surely, 2^20442134000 is an apocalyptic number.

20442134000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20442134000 is an abundant number, since it is smaller than the sum of its proper divisors (28986950848).

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

20442134000 is a wasteful number, since it uses less digits than its factorization.

20442134000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221090 (or 10221074 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20442134000 its reverse (43124402), we get a palindrome (20485258402).

The spelling of 20442134000 in words is "twenty billion, four hundred forty-two million, one hundred thirty-four thousand".