3469840 has 40 divisors (see below), whose sum is σ = 8803008. Its totient is φ = 1261440.

The previous prime is 3469793. The next prime is 3469859. The reversal of 3469840 is 489643.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3469796 and 3469805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092 + ... + 2851.

Almost surely, 2^3469840 is an apocalyptic number.

It is an amenable number.

3469840 is an abundant number, since it is smaller than the sum of its proper divisors (5333168).

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

3469840 is a wasteful number, since it uses less digits than its factorization.

3469840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3961 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 3469840 is about 1862.7506542745. The cubic root of 3469840 is about 151.3920778662.

The spelling of 3469840 in words is "three million, four hundred sixty-nine thousand, eight hundred forty".