34940221 has 8 divisors (see below), whose sum is σ = 36968000. Its totient is φ = 32931360.

The previous prime is 34940207. The next prime is 34940233. The reversal of 34940221 is 12204943.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34940221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34940201) 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, 840 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (4621000).

Almost surely, 2^34940221 is an apocalyptic number.

It is an amenable number.

34940221 is a deficient number, since it is larger than the sum of its proper divisors (2027779).

34940221 is a wasteful number, since it uses less digits than its factorization.

34940221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9459.

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

The square root of 34940221 is about 5911.0253763624. The cubic root of 34940221 is about 326.9202952999.

The spelling of 34940221 in words is "thirty-four million, nine hundred forty thousand, two hundred twenty-one".