3551452720 has 20 divisors (see below), whose sum is σ = 8257127760. Its totient is φ = 1420581056.

The previous prime is 3551452703. The next prime is 3551452739. The reversal of 3551452720 is 272541553.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3551452720² = 25225632844790796800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22196500 + ... + 22196659.

It is an arithmetic number, because the mean of its divisors is an integer number (412856388).

Almost surely, 2^3551452720 is an apocalyptic number.

It is an amenable number.

3551452720 is an abundant number, since it is smaller than the sum of its proper divisors (4705675040).

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

3551452720 is a wasteful number, since it uses less digits than its factorization.

3551452720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44393172 (or 44393166 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 3551452720 is about 59594.0661475620. The cubic root of 3551452720 is about 1525.6983589942.

The spelling of 3551452720 in words is "three billion, five hundred fifty-one million, four hundred fifty-two thousand, seven hundred twenty".