4345442520 has 64 divisors (see below), whose sum is σ = 13088355840. Its totient is φ = 1154160000.

The previous prime is 4345442513. The next prime is 4345442531. The reversal of 4345442520 is 252445434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42016 + ... + 102255.

It is an arithmetic number, because the mean of its divisors is an integer number (204505560).

Almost surely, 2^4345442520 is an apocalyptic number.

4345442520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4345442520 is an abundant number, since it is smaller than the sum of its proper divisors (8742913320).

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

4345442520 is a wasteful number, since it uses less digits than its factorization.

4345442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144536 (or 144532 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

The square root of 4345442520 is about 65919.9705703818. The cubic root of 4345442520 is about 1631.8416110462.

Adding to 4345442520 its reverse (252445434), we get a palindrome (4597887954).

The spelling of 4345442520 in words is "four billion, three hundred forty-five million, four hundred forty-two thousand, five hundred twenty".