53928340 has 24 divisors (see below), whose sum is σ = 113568840. Its totient is φ = 21510528.

The previous prime is 53928319. The next prime is 53928341. The reversal of 53928340 is 4382935.

It is a happy number.

53928340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23059204 + 30869136 = 4802^2 + 5556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53928296 and 53928305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53928341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3846 + ... + 11074.

It is an arithmetic number, because the mean of its divisors is an integer number (4732035).

Almost surely, 2^53928340 is an apocalyptic number.

It is an amenable number.

53928340 is an abundant number, since it is smaller than the sum of its proper divisors (59640500).

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

53928340 is a wasteful number, since it uses less digits than its factorization.

53928340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611 (or 7609 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 53928340 is about 7343.5917642527. The cubic root of 53928340 is about 377.8090447657.

The spelling of 53928340 in words is "fifty-three million, nine hundred twenty-eight thousand, three hundred forty".