142940232 has 36 divisors (see below), whose sum is σ = 387404745. Its totient is φ = 47612928.

The previous prime is 142940219. The next prime is 142940269. The reversal of 142940232 is 232049241.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

142940232 is a `hidden beast` number, since 1 + 429 + 4 + 0 + 232 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87497316 + 55442916 = 9354^2 + 7446^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8454.

It is a junction number, because it is equal to n+sod(n) for n = 142940196 and 142940205.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 100744 + ... + 102152.

Almost surely, 2^142940232 is an apocalyptic number.

142940232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142940232 is an abundant number, since it is smaller than the sum of its proper divisors (244464513).

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

142940232 is an equidigital number, since it uses as much as digits as its factorization.

142940232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 142940232 is about 11955.7614563021. The cubic root of 142940232 is about 522.8592884569.

Adding to 142940232 its reverse (232049241), we get a palindrome (374989473).

The spelling of 142940232 in words is "one hundred forty-two million, nine hundred forty thousand, two hundred thirty-two".