4032240 has 80 divisors (see below), whose sum is σ = 12775968. Its totient is φ = 1051648.

The previous prime is 4032221. The next prime is 4032257. The reversal of 4032240 is 422304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 12562 + ... + 12878.

Almost surely, 2^4032240 is an apocalyptic number.

4032240 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 4032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6387984).

4032240 is an abundant number, since it is smaller than the sum of its proper divisors (8743728).

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

4032240 is a wasteful number, since it uses less digits than its factorization.

4032240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4032240 is about 2008.0438242230. The cubic root of 4032240 is about 159.1654462351.

Adding to 4032240 its reverse (422304), we get a palindrome (4454544).

The spelling of 4032240 in words is "four million, thirty-two thousand, two hundred forty".