34020142 has 8 divisors (see below), whose sum is σ = 54955656. Its totient is φ = 15701592.

The previous prime is 34020139. The next prime is 34020143. The reversal of 34020142 is 24102043.

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 (34020143) 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, 654208 + ... + 654259.

It is an arithmetic number, because the mean of its divisors is an integer number (6869457).

Almost surely, 2^34020142 is an apocalyptic number.

34020142 is a deficient number, since it is larger than the sum of its proper divisors (20935514).

34020142 is a wasteful number, since it uses less digits than its factorization.

34020142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308482.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 34020142 is about 5832.6788013742. The cubic root of 34020142 is about 324.0251403040.

Adding to 34020142 its reverse (24102043), we get a palindrome (58122185).

The spelling of 34020142 in words is "thirty-four million, twenty thousand, one hundred forty-two".