4352440 has 32 divisors (see below), whose sum is σ = 9856080. Its totient is φ = 1729792.

The previous prime is 4352423. The next prime is 4352441. The reversal of 4352440 is 442534.

It is a happy number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁶ + 3⁷ + 5⁷ + 2¹³ + 4⁸ + 4¹¹ + 0 .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4352441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9087 + ... + 9553.

Almost surely, 2^4352440 is an apocalyptic number.

4352440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4352440 is an abundant number, since it is smaller than the sum of its proper divisors (5503640).

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

4352440 is a wasteful number, since it uses less digits than its factorization.

4352440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4352440 is about 2086.2502246854. The cubic root of 4352440 is about 163.2717061224.

Adding to 4352440 its reverse (442534), we get a palindrome (4794974).

The spelling of 4352440 in words is "four million, three hundred fifty-two thousand, four hundred forty".