53406342 has 96 divisors (see below), whose sum is σ = 133436160. Its totient is φ = 15288000.

The previous prime is 53406337. The next prime is 53406343. The reversal of 53406342 is 24360435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53406343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 407617 + ... + 407747.

It is an arithmetic number, because the mean of its divisors is an integer number (1389960).

Almost surely, 2^53406342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53406342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66718080).

53406342 is an abundant number, since it is smaller than the sum of its proper divisors (80029818).

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

53406342 is a wasteful number, since it uses less digits than its factorization.

53406342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 53406342 is about 7307.9642856270. The cubic root of 53406342 is about 376.5860927018.

Adding to 53406342 its reverse (24360435), we get a palindrome (77766777).

The spelling of 53406342 in words is "fifty-three million, four hundred six thousand, three hundred forty-two".