34129402 has 4 divisors (see below), whose sum is σ = 51194106. Its totient is φ = 17064700.

The previous prime is 34129399. The next prime is 34129409. The reversal of 34129402 is 20492143.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27154521 + 6974881 = 5211^2 + 2641^2 .

It is not an unprimeable number, because it can be changed into a prime (34129409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8532349 + ... + 8532352.

Almost surely, 2^34129402 is an apocalyptic number.

34129402 is a deficient number, since it is larger than the sum of its proper divisors (17064704).

34129402 is a wasteful number, since it uses less digits than its factorization.

34129402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17064703.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 34129402 is about 5842.0374870417. The cubic root of 34129402 is about 324.3716522215.

The spelling of 34129402 in words is "thirty-four million, one hundred twenty-nine thousand, four hundred two".