3451668 has 48 divisors (see below), whose sum is σ = 8924160. Its totient is φ = 1029600.

The previous prime is 3451661. The next prime is 3451681. The reversal of 3451668 is 8661543.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3451661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10263 + ... + 10593.

It is an arithmetic number, because the mean of its divisors is an integer number (185920).

Almost surely, 2^3451668 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 3451668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4462080).

3451668 is an abundant number, since it is smaller than the sum of its proper divisors (5472492).

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

3451668 is a wasteful number, since it uses less digits than its factorization.

3451668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 426 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 3451668 is about 1857.8665183484. The cubic root of 3451668 is about 151.1273285331.

The spelling of 3451668 in words is "three million, four hundred fifty-one thousand, six hundred sixty-eight".