142344402 has 32 divisors (see below), whose sum is σ = 293222592. Its totient is φ = 46033344.

The previous prime is 142344361. The next prime is 142344413. The reversal of 142344402 is 204443241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102988 + ... + 104360.

It is an arithmetic number, because the mean of its divisors is an integer number (9163206).

Almost surely, 2^142344402 is an apocalyptic number.

142344402 is an abundant number, since it is smaller than the sum of its proper divisors (150878190).

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

142344402 is a wasteful number, since it uses less digits than its factorization.

142344402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 142344402 is about 11930.8173232181. The cubic root of 142344402 is about 522.1317836412.

Adding to 142344402 its reverse (204443241), we get a palindrome (346787643).

The spelling of 142344402 in words is "one hundred forty-two million, three hundred forty-four thousand, four hundred two".