200423150440 has 32 divisors (see below), whose sum is σ = 453718680480. Its totient is φ = 79677421632.

The previous prime is 200423150407. The next prime is 200423150441. The reversal of 200423150440 is 44051324002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (200423150441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15363354 + ... + 15376393.

It is an arithmetic number, because the mean of its divisors is an integer number (14178708765).

Almost surely, 2^200423150440 is an apocalyptic number.

200423150440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200423150440 is an abundant number, since it is smaller than the sum of its proper divisors (253295530040).

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

200423150440 is a wasteful number, since it uses less digits than its factorization.

200423150440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30739921 (or 30739917 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 200423150440 its reverse (44051324002), we get a palindrome (244474474442).

The spelling of 200423150440 in words is "two hundred billion, four hundred twenty-three million, one hundred fifty thousand, four hundred forty".