142431372 has 120 divisors (see below), whose sum is σ = 415301040. Its totient is φ = 42301440.

The previous prime is 142431361. The next prime is 142431379. The reversal of 142431372 is 273134241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431379) 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 39 ways as a sum of consecutive naturals, for example, 103972 + ... + 105332.

It is an arithmetic number, because the mean of its divisors is an integer number (3460842).

Almost surely, 2^142431372 is an apocalyptic number.

142431372 is a gapful number since it is divisible by the number (12) 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 142431372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207650520).

142431372 is an abundant number, since it is smaller than the sum of its proper divisors (272869668).

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

142431372 is a wasteful number, since it uses less digits than its factorization.

142431372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1402 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 142431372 is about 11934.4615295371. The cubic root of 142431372 is about 522.2380998610.

The spelling of 142431372 in words is "one hundred forty-two million, four hundred thirty-one thousand, three hundred seventy-two".