3454840 has 16 divisors (see below), whose sum is σ = 7773480. Its totient is φ = 1381920.

The previous prime is 3454837. The next prime is 3454861. The reversal of 3454840 is 484543.

It is a junction number, because it is equal to n+sod(n) for n = 3454799 and 3454808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43146 + ... + 43225.

Almost surely, 2^3454840 is an apocalyptic number.

It is an amenable number.

3454840 is an abundant number, since it is smaller than the sum of its proper divisors (4318640).

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

3454840 is a wasteful number, since it uses less digits than its factorization.

3454840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86382 (or 86378 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 3454840 is about 1858.7199896703. The cubic root of 3454840 is about 151.1736084878.

The spelling of 3454840 in words is "three million, four hundred fifty-four thousand, eight hundred forty".