4396440 has 32 divisors (see below), whose sum is σ = 13189680. Its totient is φ = 1172352.

The previous prime is 4396439. The next prime is 4396459. The reversal of 4396440 is 446934.

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 = 4396398 and 4396407.

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, 18199 + ... + 18438.

Almost surely, 2^4396440 is an apocalyptic number.

4396440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4396440 is an abundant number, since it is smaller than the sum of its proper divisors (8793240).

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

4396440 is a wasteful number, since it uses less digits than its factorization.

4396440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36651 (or 36647 counting only the distinct ones).

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

The square root of 4396440 is about 2096.7689429215. The cubic root of 4396440 is about 163.8200485031.

The spelling of 4396440 in words is "four million, three hundred ninety-six thousand, four hundred forty".