3450161220 has 288 divisors, whose sum is σ = 11503513728. Its totient is φ = 763392000.

The previous prime is 3450161173. The next prime is 3450161249. The reversal of 3450161220 is 221610543.

It is a super-2 number, since 2×3450161220² = 23807224887983776800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48593785 + ... + 48593855.

It is an arithmetic number, because the mean of its divisors is an integer number (39942756).

Almost surely, 2^3450161220 is an apocalyptic number.

3450161220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3450161220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5751756864).

3450161220 is an abundant number, since it is smaller than the sum of its proper divisors (8053352508).

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

3450161220 is a wasteful number, since it uses less digits than its factorization.

3450161220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3450161220 is about 58738.0730020998. The cubic root of 3450161220 is about 1511.0533445374.

Adding to 3450161220 its reverse (221610543), we get a palindrome (3671771763).

The spelling of 3450161220 in words is "three billion, four hundred fifty million, one hundred sixty-one thousand, two hundred twenty".