4394480 has 40 divisors (see below), whose sum is σ = 10310352. Its totient is φ = 1741824.

The previous prime is 4394473. The next prime is 4394561. The reversal of 4394480 is 844934.

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

It is a super-2 number, since 2×4394480² = 38622908940800, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

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, 12872 + ... + 13208.

Almost surely, 2^4394480 is an apocalyptic number.

4394480 is a gapful number since it is divisible by the number (40) 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 4394480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5155176).

4394480 is an abundant number, since it is smaller than the sum of its proper divisors (5915872).

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

4394480 is a wasteful number, since it uses less digits than its factorization.

4394480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4394480 is about 2096.3015050321. The cubic root of 4394480 is about 163.7957003925.

The spelling of 4394480 in words is "four million, three hundred ninety-four thousand, four hundred eighty".