34640642 has 4 divisors (see below), whose sum is σ = 51960966. Its totient is φ = 17320320.

The previous prime is 34640633. The next prime is 34640657. The reversal of 34640642 is 24604643.

It is a happy number.

34640642 is nontrivially palindromic in base 8.

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., 17986081 + 16654561 = 4241^2 + 4081^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8660159 + ... + 8660162.

Almost surely, 2^34640642 is an apocalyptic number.

34640642 is a deficient number, since it is larger than the sum of its proper divisors (17320324).

34640642 is a wasteful number, since it uses less digits than its factorization.

34640642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17320323.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 34640642 is about 5885.6301276924. The cubic root of 34640642 is about 325.9832691176.

The spelling of 34640642 in words is "thirty-four million, six hundred forty thousand, six hundred forty-two".