34221540 has 24 divisors (see below), whose sum is σ = 95820480. Its totient is φ = 9125728.

The previous prime is 34221491. The next prime is 34221553. The reversal of 34221540 is 4512243.

It is a super-2 number, since 2×34221540² = 2342227599943200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285120 + ... + 285239.

It is an arithmetic number, because the mean of its divisors is an integer number (3992520).

Almost surely, 2^34221540 is an apocalyptic number.

34221540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34221540 is an abundant number, since it is smaller than the sum of its proper divisors (61598940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34221540 is a wasteful number, since it uses less digits than its factorization.

34221540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570371 (or 570369 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 34221540 is about 5849.9179481425. The cubic root of 34221540 is about 324.6632883560.

Adding to 34221540 its product of nonzero digits (960), we get a square (34222500 = 5850²).

Adding to 34221540 its reverse (4512243), we get a palindrome (38733783).

The spelling of 34221540 in words is "thirty-four million, two hundred twenty-one thousand, five hundred forty".