3479640 has 64 divisors (see below), whose sum is σ = 10575360. Its totient is φ = 915840.

The previous prime is 3479627. The next prime is 3479653. The reversal of 3479640 is 469743.

It is an interprime number because it is at equal distance from previous prime (3479627) and next prime (3479653).

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, 12705 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

Almost surely, 2^3479640 is an apocalyptic number.

3479640 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 3479640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5287680).

3479640 is an abundant number, since it is smaller than the sum of its proper divisors (7095720).

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

3479640 is a wasteful number, since it uses less digits than its factorization.

3479640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 3479640 is about 1865.3793179941. The cubic root of 3479640 is about 151.5344713465.

The spelling of 3479640 in words is "three million, four hundred seventy-nine thousand, six hundred forty".