34721642 has 8 divisors (see below), whose sum is σ = 53878500. Its totient is φ = 16762144.

The previous prime is 34721641. The next prime is 34721657. The reversal of 34721642 is 24612743.

34721642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33396841 + 1324801 = 5779^2 + 1151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (34721641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299267 + ... + 299382.

Almost surely, 2^34721642 is an apocalyptic number.

34721642 is a deficient number, since it is larger than the sum of its proper divisors (19156858).

34721642 is a wasteful number, since it uses less digits than its factorization.

34721642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598680.

The product of its digits is 8064, while the sum is 29.

The square root of 34721642 is about 5892.5072761941. The cubic root of 34721642 is about 326.2371528927.

The spelling of 34721642 in words is "thirty-four million, seven hundred twenty-one thousand, six hundred forty-two".