3453281408 has 16 divisors (see below), whose sum is σ = 6879584310. Its totient is φ = 1726640640.

The previous prime is 3453281399. The next prime is 3453281423. The reversal of 3453281408 is 8041823543.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3010936384 + 442345024 = 54872^2 + 21032^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13489253 + ... + 13489508.

Almost surely, 2^3453281408 is an apocalyptic number.

It is an amenable number.

3453281408 is a deficient number, since it is larger than the sum of its proper divisors (3426302902).

3453281408 is an equidigital number, since it uses as much as digits as its factorization.

3453281408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26978775 (or 26978763 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 3453281408 is about 58764.6271833660. The cubic root of 3453281408 is about 1511.5087193873.

The spelling of 3453281408 in words is "three billion, four hundred fifty-three million, two hundred eighty-one thousand, four hundred eight".