3451303728 has 60 divisors (see below), whose sum is σ = 10016603688. Its totient is φ = 1150433280.

The previous prime is 3451303727. The next prime is 3451303741. The reversal of 3451303728 is 8273031543.

3451303728 is a `hidden beast` number, since 345 + 1 + 303 + 7 + 2 + 8 = 666.

It is a super-3 number, since 3×3451303728³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3451303692 and 3451303701.

It is not an unprimeable number, because it can be changed into a prime (3451303721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439953 + ... + 447728.

Almost surely, 2^3451303728 is an apocalyptic number.

It is an amenable number.

3451303728 is an abundant number, since it is smaller than the sum of its proper divisors (6565299960).

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

3451303728 is an equidigital number, since it uses as much as digits as its factorization.

3451303728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887704 (or 887686 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 3451303728 is about 58747.7976438266. The cubic root of 3451303728 is about 1511.2201193533.

The spelling of 3451303728 in words is "three billion, four hundred fifty-one million, three hundred three thousand, seven hundred twenty-eight".