3469440 has 128 divisors (see below), whose sum is σ = 11995200. Its totient is φ = 847872.

The previous prime is 3469421. The next prime is 3469441. The reversal of 3469440 is 449643.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3469398 and 3469407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3469441) 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, 24891 + ... + 25029.

Almost surely, 2^3469440 is an apocalyptic number.

3469440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3469440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5997600).

3469440 is an abundant number, since it is smaller than the sum of its proper divisors (8525760).

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

3469440 is a wasteful number, since it uses less digits than its factorization.

3469440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 3469440 is about 1862.6432830792. The cubic root of 3469440 is about 151.3862601956.

The spelling of 3469440 in words is "three million, four hundred sixty-nine thousand, four hundred forty".