526381428 has 12 divisors (see below), whose sum is σ = 1228223360. Its totient is φ = 175460472.

The previous prime is 526381423. The next prime is 526381451. The reversal of 526381428 is 824183625.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526381423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21932548 + ... + 21932571.

Almost surely, 2^526381428 is an apocalyptic number.

It is an amenable number.

526381428 is an abundant number, since it is smaller than the sum of its proper divisors (701841932).

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

526381428 is a wasteful number, since it uses less digits than its factorization.

526381428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43865126 (or 43865124 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 526381428 is about 22943.0039009716. The cubic root of 526381428 is about 807.4212701409.

The spelling of 526381428 in words is "five hundred twenty-six million, three hundred eighty-one thousand, four hundred twenty-eight".