5432640 has 56 divisors (see below), whose sum is σ = 17251680. Its totient is φ = 1448448.

The previous prime is 5432633. The next prime is 5432641. The reversal of 5432640 is 462345.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 5⁵ + 4¹⁰ + 3¹¹ + 2¹³ + 6⁴ + 4¹¹ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 5432640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5432641) 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, 1870 + ... + 3789.

Almost surely, 2^5432640 is an apocalyptic number.

It is an amenable number.

5432640 is an abundant number, since it is smaller than the sum of its proper divisors (11819040).

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

5432640 is a wasteful number, since it uses less digits than its factorization.

5432640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5679 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 5432640 is about 2330.8024369303. The cubic root of 5432640 is about 175.7938357310.

Adding to 5432640 its reverse (462345), we get a palindrome (5894985).

The spelling of 5432640 in words is "five million, four hundred thirty-two thousand, six hundred forty".