20442042332 has 6 divisors (see below), whose sum is σ = 35773574088. Its totient is φ = 10221021164.

The previous prime is 20442042331. The next prime is 20442042353. The reversal of 20442042332 is 23324024402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442042331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555255288 + ... + 2555255295.

It is an arithmetic number, because the mean of its divisors is an integer number (5962262348).

Almost surely, 2^20442042332 is an apocalyptic number.

It is an amenable number.

20442042332 is a deficient number, since it is larger than the sum of its proper divisors (15331531756).

20442042332 is a wasteful number, since it uses less digits than its factorization.

20442042332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110510587 (or 5110510585 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20442042332 its reverse (23324024402), we get a palindrome (43766066734).

The spelling of 20442042332 in words is "twenty billion, four hundred forty-two million, forty-two thousand, three hundred thirty-two".