142620346 has 32 divisors (see below), whose sum is σ = 249868800. Its totient is φ = 60364080.

The previous prime is 142620341. The next prime is 142620377. The reversal of 142620346 is 643026241.

It is not an unprimeable number, because it can be changed into a prime (142620341) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21771 + ... + 27553.

It is an arithmetic number, because the mean of its divisors is an integer number (7808400).

Almost surely, 2^142620346 is an apocalyptic number.

142620346 is a deficient number, since it is larger than the sum of its proper divisors (107248454).

142620346 is a wasteful number, since it uses less digits than its factorization.

142620346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 142620346 is about 11942.3760617391. The cubic root of 142620346 is about 522.4689614736.

Adding to 142620346 its reverse (643026241), we get a palindrome (785646587).

The spelling of 142620346 in words is "one hundred forty-two million, six hundred twenty thousand, three hundred forty-six".