34401521 has 8 divisors (see below), whose sum is σ = 42890304. Its totient is φ = 26806320.

The previous prime is 34401503. The next prime is 34401539. The reversal of 34401521 is 12510443.

34401521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (34401503) and next prime (34401539).

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-34401521 is a prime.

It is a super-2 number, since 2×34401521² = 2366929294226882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34401493 and 34401502.

It is not an unprimeable number, because it can be changed into a prime (34401581) 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 7 ways as a sum of consecutive naturals, for example, 223310 + ... + 223463.

It is an arithmetic number, because the mean of its divisors is an integer number (5361288).

Almost surely, 2^34401521 is an apocalyptic number.

It is an amenable number.

34401521 is a deficient number, since it is larger than the sum of its proper divisors (8488783).

34401521 is a wasteful number, since it uses less digits than its factorization.

34401521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446791.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 34401521 is about 5865.2809821866. The cubic root of 34401521 is about 325.2314595768.

Adding to 34401521 its reverse (12510443), we get a palindrome (46911964).

The spelling of 34401521 in words is "thirty-four million, four hundred one thousand, five hundred twenty-one".