4435221540 has 24 divisors (see below), whose sum is σ = 12418620480. Its totient is φ = 1182725728.

The previous prime is 4435221503. The next prime is 4435221559. The reversal of 4435221540 is 451225344.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4435221498 and 4435221507.

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, 36960120 + ... + 36960239.

It is an arithmetic number, because the mean of its divisors is an integer number (517442520).

Almost surely, 2^4435221540 is an apocalyptic number.

It is an amenable number.

4435221540 is an abundant number, since it is smaller than the sum of its proper divisors (7983398940).

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

4435221540 is a wasteful number, since it uses less digits than its factorization.

4435221540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73920371 (or 73920369 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 4435221540 is about 66597.4589605339. The cubic root of 4435221540 is about 1643.0033133855.

Adding to 4435221540 its reverse (451225344), we get a palindrome (4886446884).

The spelling of 4435221540 in words is "four billion, four hundred thirty-five million, two hundred twenty-one thousand, five hundred forty".