34421142 has 32 divisors (see below), whose sum is σ = 78854400. Its totient is φ = 9812448.

The previous prime is 34421119. The next prime is 34421143. The reversal of 34421142 is 24112443.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34421143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30484 + ... + 31592.

It is an arithmetic number, because the mean of its divisors is an integer number (2464200).

Almost surely, 2^34421142 is an apocalyptic number.

34421142 is an abundant number, since it is smaller than the sum of its proper divisors (44433258).

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

34421142 is a wasteful number, since it uses less digits than its factorization.

34421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860.

The product of its digits is 768, while the sum is 21.

The square root of 34421142 is about 5866.9533831453. The cubic root of 34421142 is about 325.2932800376.

Adding to 34421142 its reverse (24112443), we get a palindrome (58533585).

The spelling of 34421142 in words is "thirty-four million, four hundred twenty-one thousand, one hundred forty-two".