142306436 has 36 divisors (see below), whose sum is σ = 259507584. Its totient is φ = 68266800.

The previous prime is 142306429. The next prime is 142306453. The reversal of 142306436 is 634603241.

It is a super-2 number, since 2×142306436² = 40502243454044192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142306399 and 142306408.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 524981 + ... + 525251.

It is an arithmetic number, because the mean of its divisors is an integer number (7208544).

Almost surely, 2^142306436 is an apocalyptic number.

It is an amenable number.

142306436 is a deficient number, since it is larger than the sum of its proper divisors (117201148).

142306436 is a wasteful number, since it uses less digits than its factorization.

142306436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 142306436 is about 11929.2261274569. The cubic root of 142306436 is about 522.0853586380.

Adding to 142306436 its reverse (634603241), we get a palindrome (776909677).

The spelling of 142306436 in words is "one hundred forty-two million, three hundred six thousand, four hundred thirty-six".