65540428 has 24 divisors (see below), whose sum is σ = 117759488. Its totient is φ = 31900176.

The previous prime is 65540411. The next prime is 65540429. The reversal of 65540428 is 82404556.

65540428 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

65540428 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 65540393 and 65540402.

It is not an unprimeable number, because it can be changed into a prime (65540429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79225 + ... + 80047.

Almost surely, 2^65540428 is an apocalyptic number.

It is an amenable number.

65540428 is a deficient number, since it is larger than the sum of its proper divisors (52219060).

65540428 is a wasteful number, since it uses less digits than its factorization.

65540428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 65540428 is about 8095.7042930186. The cubic root of 65540428 is about 403.1838160522.

The spelling of 65540428 in words is "sixty-five million, five hundred forty thousand, four hundred twenty-eight".