4521343440 has 40 divisors (see below), whose sum is σ = 14016165408. Its totient is φ = 1205691520.

The previous prime is 4521343439. The next prime is 4521343441. The reversal of 4521343440 is 443431254.

It is an interprime number because it is at equal distance from previous prime (4521343439) and next prime (4521343441).

It is a tau number, because it is divible by the number of its divisors (40).

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 = 4521343398 and 4521343407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521343441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9419226 + ... + 9419705.

Almost surely, 2^4521343440 is an apocalyptic number.

4521343440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4521343440 is an abundant number, since it is smaller than the sum of its proper divisors (9494821968).

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

4521343440 is a wasteful number, since it uses less digits than its factorization.

4521343440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18838947 (or 18838941 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 4521343440 is about 67240.9357460171. The cubic root of 4521343440 is about 1653.5696747783.

Adding to 4521343440 its reverse (443431254), we get a palindrome (4964774694).

The spelling of 4521343440 in words is "four billion, five hundred twenty-one million, three hundred forty-three thousand, four hundred forty".