143422020 has 288 divisors, whose sum is σ = 534643200. Its totient is φ = 31046400.

The previous prime is 143422003. The next prime is 143422021. The reversal of 143422020 is 20224341.

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 = 143421984 and 143422002.

It is not an unprimeable number, because it can be changed into a prime (143422021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1419970 + ... + 1420070.

It is an arithmetic number, because the mean of its divisors is an integer number (1856400).

Almost surely, 2^143422020 is an apocalyptic number.

143422020 is a gapful number since it is divisible by the number (10) 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 143422020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267321600).

143422020 is an abundant number, since it is smaller than the sum of its proper divisors (391221180).

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

143422020 is a wasteful number, since it uses less digits than its factorization.

143422020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 141 counting only the distinct ones).

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

The square root of 143422020 is about 11975.8932860977. The cubic root of 143422020 is about 523.4460717895.

Adding to 143422020 its reverse (20224341), we get a palindrome (163646361).

The spelling of 143422020 in words is "one hundred forty-three million, four hundred twenty-two thousand, twenty".