143220040 has 32 divisors (see below), whose sum is σ = 324576000. Its totient is φ = 56873664.

The previous prime is 143220029. The next prime is 143220041. The reversal of 143220040 is 40022341.

It is a junction number, because it is equal to n+sod(n) for n = 143219996 and 143220023.

It is not an unprimeable number, because it can be changed into a prime (143220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7320 + ... + 18439.

It is an arithmetic number, because the mean of its divisors is an integer number (10143000).

Almost surely, 2^143220040 is an apocalyptic number.

143220040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143220040 is an abundant number, since it is smaller than the sum of its proper divisors (181355960).

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

143220040 is a wasteful number, since it uses less digits than its factorization.

143220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25909 (or 25905 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 143220040 is about 11967.4575411823. The cubic root of 143220040 is about 523.2002348130.

Adding to 143220040 its reverse (40022341), we get a palindrome (183242381).

The spelling of 143220040 in words is "one hundred forty-three million, two hundred twenty thousand, forty".