3503420520 has 64 divisors (see below), whose sum is σ = 11128518720. Its totient is φ = 879289344.

The previous prime is 3503420509. The next prime is 3503420567. The reversal of 3503420520 is 250243053.

It is a super-3 number, since 3×3503420520³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 856642 + ... + 860721.

It is an arithmetic number, because the mean of its divisors is an integer number (173883105).

Almost surely, 2^3503420520 is an apocalyptic number.

3503420520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3503420520 is an abundant number, since it is smaller than the sum of its proper divisors (7625098200).

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

3503420520 is a wasteful number, since it uses less digits than its factorization.

3503420520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717394 (or 1717390 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 3503420520 is about 59189.6994417103. The cubic root of 3503420520 is about 1518.7889302964.

Adding to 3503420520 its reverse (250243053), we get a palindrome (3753663573).

The spelling of 3503420520 in words is "three billion, five hundred three million, four hundred twenty thousand, five hundred twenty".