538280919 has 36 divisors (see below), whose sum is σ = 879479640. Its totient is φ = 314254080.

The previous prime is 538280909. The next prime is 538280927. The reversal of 538280919 is 919082835.

It is a happy number.

538280919 is a `hidden beast` number, since 538 + 28 + 0 + 91 + 9 = 666.

It is not a de Polignac number, because 538280919 - 2⁷ = 538280791 is a prime.

It is a super-2 number, since 2×538280919² = 579492695518969122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538280909) 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 35 ways as a sum of consecutive naturals, for example, 1242927 + ... + 1243359.

It is an arithmetic number, because the mean of its divisors is an integer number (24429990).

Almost surely, 2^538280919 is an apocalyptic number.

538280919 is a deficient number, since it is larger than the sum of its proper divisors (341198721).

538280919 is a wasteful number, since it uses less digits than its factorization.

538280919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 538280919 is about 23200.8818582398. The cubic root of 538280919 is about 813.4602360475.

The spelling of 538280919 in words is "five hundred thirty-eight million, two hundred eighty thousand, nine hundred nineteen".