142768436 has 24 divisors (see below), whose sum is σ = 257591040. Its totient is φ = 69204672.

The previous prime is 142768427. The next prime is 142768441. The reversal of 142768436 is 634867241.

It is a junction number, because it is equal to n+sod(n) for n = 142768393 and 142768402.

It is a congruent number.

It is an unprimeable number.

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, 13085 + ... + 21371.

It is an arithmetic number, because the mean of its divisors is an integer number (10732960).

Almost surely, 2^142768436 is an apocalyptic number.

It is an amenable number.

142768436 is a deficient number, since it is larger than the sum of its proper divisors (114822604).

142768436 is a wasteful number, since it uses less digits than its factorization.

142768436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8423 (or 8421 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 142768436 is about 11948.5746430275. The cubic root of 142768436 is about 522.6497343348.

The spelling of 142768436 in words is "one hundred forty-two million, seven hundred sixty-eight thousand, four hundred thirty-six".