3450421520 has 160 divisors (see below), whose sum is σ = 10192680960. Its totient is φ = 1056706560.

The previous prime is 3450421511. The next prime is 3450421531. The reversal of 3450421520 is 251240543.

It is a happy number.

It is a super-2 number, since 2×3450421520² = 23810817331358220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 3450421520.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218036 + ... + 233324.

It is an arithmetic number, because the mean of its divisors is an integer number (63704256).

Almost surely, 2^3450421520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3450421520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5096340480).

3450421520 is an abundant number, since it is smaller than the sum of its proper divisors (6742259440).

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

3450421520 is a wasteful number, since it uses less digits than its factorization.

3450421520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353 (or 15347 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 3450421520 is about 58740.2887292870. The cubic root of 3450421520 is about 1511.0913444326.

The spelling of 3450421520 in words is "three billion, four hundred fifty million, four hundred twenty-one thousand, five hundred twenty".