215014028 has 24 divisors (see below), whose sum is σ = 415733472. Its totient is φ = 96783104.

The previous prime is 215014021. The next prime is 215014043. The reversal of 215014028 is 820410512.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 215013994 and 215014012.

It is not an unprimeable number, because it can be changed into a prime (215014021) 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 7 ways as a sum of consecutive naturals, for example, 67175 + ... + 70302.

It is an arithmetic number, because the mean of its divisors is an integer number (17322228).

Almost surely, 2^215014028 is an apocalyptic number.

It is an amenable number.

215014028 is a deficient number, since it is larger than the sum of its proper divisors (200719444).

215014028 is a wasteful number, since it uses less digits than its factorization.

215014028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137521 (or 137519 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 215014028 is about 14663.3566416425. The cubic root of 215014028 is about 599.0856703395.

The spelling of 215014028 in words is "two hundred fifteen million, fourteen thousand, twenty-eight".