142402838 has 8 divisors (see below), whose sum is σ = 217634688. Its totient is φ = 69857944.

The previous prime is 142402837. The next prime is 142402849. The reversal of 142402838 is 838204241.

142402838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142402837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671606 + ... + 671817.

It is an arithmetic number, because the mean of its divisors is an integer number (27204336).

Almost surely, 2^142402838 is an apocalyptic number.

142402838 is a deficient number, since it is larger than the sum of its proper divisors (75231850).

142402838 is a wasteful number, since it uses less digits than its factorization.

142402838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343478.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 142402838 is about 11933.2660240187. The cubic root of 142402838 is about 522.2032233284.

The spelling of 142402838 in words is "one hundred forty-two million, four hundred two thousand, eight hundred thirty-eight".