53040344 has 48 divisors (see below), whose sum is σ = 116348400. Its totient is φ = 22602048.

The previous prime is 53040341. The next prime is 53040359. The reversal of 53040344 is 44304035.

53040344 = T₁₄₇ + T₁₄₈ + ... + T₆₈₄.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53040341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105197 + ... + 105699.

It is an arithmetic number, because the mean of its divisors is an integer number (2423925).

Almost surely, 2^53040344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53040344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58174200).

53040344 is an abundant number, since it is smaller than the sum of its proper divisors (63308056).

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

53040344 is a wasteful number, since it uses less digits than its factorization.

53040344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 53040344 is about 7282.8801994815. The cubic root of 53040344 is about 375.7238616842.

Adding to 53040344 its reverse (44304035), we get a palindrome (97344379).

The spelling of 53040344 in words is "fifty-three million, forty thousand, three hundred forty-four".