4015216 has 10 divisors (see below), whose sum is σ = 7779512. Its totient is φ = 2007600.

The previous prime is 4015201. The next prime is 4015237. The reversal of 4015216 is 6125104.

It is a super-2 number, since 2×4015216² = 32243919053312, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4015193 and 4015202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125460 + ... + 125491.

Almost surely, 2^4015216 is an apocalyptic number.

It is an amenable number.

4015216 is a deficient number, since it is larger than the sum of its proper divisors (3764296).

4015216 is a wasteful number, since it uses less digits than its factorization.

4015216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250959 (or 250953 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4015216 is about 2003.8003892604. The cubic root of 4015216 is about 158.9411329621.

The spelling of 4015216 in words is "four million, fifteen thousand, two hundred sixteen".