4132440 has 96 divisors (see below), whose sum is σ = 14479920. Its totient is φ = 1016064.

The previous prime is 4132439. The next prime is 4132477. The reversal of 4132440 is 442314.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4239 + ... + 5121.

Almost surely, 2^4132440 is an apocalyptic number.

4132440 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 4132440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7239960).

4132440 is an abundant number, since it is smaller than the sum of its proper divisors (10347480).

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

4132440 is a wasteful number, since it uses less digits than its factorization.

4132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4132440 is about 2032.8403774030. The cubic root of 4132440 is about 160.4730790146.

Adding to 4132440 its reverse (442314), we get a palindrome (4574754).

The spelling of 4132440 in words is "four million, one hundred thirty-two thousand, four hundred forty".