538885215 has 24 divisors (see below), whose sum is σ = 1018983888. Its totient is φ = 261277440.

The previous prime is 538885177. The next prime is 538885223. The reversal of 538885215 is 512588835.

It is not a de Polignac number, because 538885215 - 2¹⁶ = 538819679 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543834 + ... + 544823.

It is an arithmetic number, because the mean of its divisors is an integer number (42457662).

Almost surely, 2^538885215 is an apocalyptic number.

538885215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

538885215 is a deficient number, since it is larger than the sum of its proper divisors (480098673).

538885215 is a wasteful number, since it uses less digits than its factorization.

538885215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088679 (or 1088676 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 538885215 is about 23213.9013308836. The cubic root of 538885215 is about 813.7645300272.

The spelling of 538885215 in words is "five hundred thirty-eight million, eight hundred eighty-five thousand, two hundred fifteen".