4345242520 has 16 divisors (see below), whose sum is σ = 9776795760. Its totient is φ = 1738096992.

The previous prime is 4345242511. The next prime is 4345242527. The reversal of 4345242520 is 252425434.

It is a super-2 number, since 2×4345242520² = 37762265115231900800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4345242527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54315492 + ... + 54315571.

It is an arithmetic number, because the mean of its divisors is an integer number (611049735).

Almost surely, 2^4345242520 is an apocalyptic number.

4345242520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4345242520 is an abundant number, since it is smaller than the sum of its proper divisors (5431553240).

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

4345242520 is a wasteful number, since it uses less digits than its factorization.

4345242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108631074 (or 108631070 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 4345242520 is about 65918.4535619579. The cubic root of 4345242520 is about 1631.8165753659.

Adding to 4345242520 its reverse (252425434), we get a palindrome (4597667954).

The spelling of 4345242520 in words is "four billion, three hundred forty-five million, two hundred forty-two thousand, five hundred twenty".