34742142 has 16 divisors (see below), whose sum is σ = 77204880. Its totient is φ = 11580696.

The previous prime is 34742119. The next prime is 34742143. The reversal of 34742142 is 24124743.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34742143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321633 + ... + 321740.

It is an arithmetic number, because the mean of its divisors is an integer number (4825305).

Almost surely, 2^34742142 is an apocalyptic number.

34742142 is an abundant number, since it is smaller than the sum of its proper divisors (42462738).

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

34742142 is a wasteful number, since it uses less digits than its factorization.

34742142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643384 (or 643378 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 34742142 is about 5894.2465167314. The cubic root of 34742142 is about 326.3013448058.

Adding to 34742142 its reverse (24124743), we get a palindrome (58866885).

The spelling of 34742142 in words is "thirty-four million, seven hundred forty-two thousand, one hundred forty-two".