52426404 has 18 divisors (see below), whose sum is σ = 132522390. Its totient is φ = 17475456.

The previous prime is 52426399. The next prime is 52426421. The reversal of 52426404 is 40462425.

It can be written as a sum of positive squares in only one way, i.e., 34786404 + 17640000 = 5898^2 + 4200^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728109 + ... + 728180.

It is an arithmetic number, because the mean of its divisors is an integer number (7362355).

Almost surely, 2^52426404 is an apocalyptic number.

It is an amenable number.

52426404 is an abundant number, since it is smaller than the sum of its proper divisors (80095986).

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

52426404 is a wasteful number, since it uses less digits than its factorization.

52426404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456299 (or 1456294 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 52426404 is about 7240.6079855217. The cubic root of 52426404 is about 374.2685689505.

Adding to 52426404 its reverse (40462425), we get a palindrome (92888829).

The spelling of 52426404 in words is "fifty-two million, four hundred twenty-six thousand, four hundred four".