143642324 has 36 divisors (see below), whose sum is σ = 294102900. Its totient is φ = 61205760.

The previous prime is 143642321. The next prime is 143642327. The reversal of 143642324 is 423246341.

It is an interprime number because it is at equal distance from previous prime (143642321) and next prime (143642327).

It can be written as a sum of positive squares in 2 ways, for example, as 13454224 + 130188100 = 3668^2 + 11410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143642321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33452 + ... + 37500.

It is an arithmetic number, because the mean of its divisors is an integer number (8169525).

Almost surely, 2^143642324 is an apocalyptic number.

143642324 is a gapful number since it is divisible by the number (14) 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 143642324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147051450).

143642324 is an abundant number, since it is smaller than the sum of its proper divisors (150460576).

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

143642324 is a wasteful number, since it uses less digits than its factorization.

143642324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248 (or 4239 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 143642324 is about 11985.0875674732. The cubic root of 143642324 is about 523.7139485289.

Adding to 143642324 its reverse (423246341), we get a palindrome (566888665).

The spelling of 143642324 in words is "one hundred forty-three million, six hundred forty-two thousand, three hundred twenty-four".