344020142 has 4 divisors (see below), whose sum is σ = 516030216. Its totient is φ = 172010070.

The previous prime is 344020141. The next prime is 344020147. The reversal of 344020142 is 241020443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241020443 = 31 ⋅7774853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344020141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86005034 + ... + 86005037.

It is an arithmetic number, because the mean of its divisors is an integer number (129007554).

Almost surely, 2^344020142 is an apocalyptic number.

344020142 is a deficient number, since it is larger than the sum of its proper divisors (172010074).

344020142 is a wasteful number, since it uses less digits than its factorization.

344020142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172010073.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 344020142 is about 18547.7799749727. The cubic root of 344020142 is about 700.6932872840.

Adding to 344020142 its reverse (241020443), we get a palindrome (585040585).

The spelling of 344020142 in words is "three hundred forty-four million, twenty thousand, one hundred forty-two".