142431400 has 24 divisors (see below), whose sum is σ = 331153470. Its totient is φ = 56972480.

The previous prime is 142431379. The next prime is 142431409. The reversal of 142431400 is 4134241.

It can be written as a sum of positive squares in 3 ways, for example, as 96000804 + 46430596 = 9798^2 + 6814^2 .

It is not an unprimeable number, because it can be changed into a prime (142431409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355879 + ... + 356278.

Almost surely, 2^142431400 is an apocalyptic number.

142431400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142431400 is an abundant number, since it is smaller than the sum of its proper divisors (188722070).

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

142431400 is a wasteful number, since it uses less digits than its factorization.

142431400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712173 (or 712164 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142431400 is about 11934.4627026105. The cubic root of 142431400 is about 522.2381340825.

Adding to 142431400 its reverse (4134241), we get a palindrome (146565641).

The spelling of 142431400 in words is "one hundred forty-two million, four hundred thirty-one thousand, four hundred".