3451840 has 112 divisors (see below), whose sum is σ = 9948672. Its totient is φ = 1115136.

The previous prime is 3451829. The next prime is 3451859. The reversal of 3451840 is 481543.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51487 + ... + 51553.

Almost surely, 2^3451840 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 3451840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4974336).

3451840 is an abundant number, since it is smaller than the sum of its proper divisors (6496832).

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

3451840 is a wasteful number, since it uses less digits than its factorization.

3451840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 3451840 is about 1857.9128074267. The cubic root of 3451840 is about 151.1298387657.

The spelling of 3451840 in words is "three million, four hundred fifty-one thousand, eight hundred forty".