53378240 has 28 divisors (see below), whose sum is σ = 127107696. Its totient is φ = 21351168.

The previous prime is 53378231. The next prime is 53378243. The reversal of 53378240 is 4287335.

It is a happy number.

53378240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 53378197 and 53378206.

It is not an unprimeable number, because it can be changed into a prime (53378243) 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 3 ways as a sum of consecutive naturals, for example, 83084 + ... + 83723.

Almost surely, 2^53378240 is an apocalyptic number.

It is an amenable number.

53378240 is an abundant number, since it is smaller than the sum of its proper divisors (73729456).

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

53378240 is a wasteful number, since it uses less digits than its factorization.

53378240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166824 (or 166814 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 53378240 is about 7306.0413357714. The cubic root of 53378240 is about 376.5200288929.

The spelling of 53378240 in words is "fifty-three million, three hundred seventy-eight thousand, two hundred forty".