4016520 has 64 divisors (see below), whose sum is σ = 13392000. Its totient is φ = 1070784.

The previous prime is 4016503. The next prime is 4016549. The reversal of 4016520 is 256104.

It is a happy number.

It is a super-2 number, since 2×4016520² = 32264865820800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4016493 and 4016502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780 + ... + 2939.

It is an arithmetic number, because the mean of its divisors is an integer number (209250).

Almost surely, 2^4016520 is an apocalyptic number.

4016520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4016520 is an abundant number, since it is smaller than the sum of its proper divisors (9375480).

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

4016520 is a wasteful number, since it uses less digits than its factorization.

4016520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4016520 is about 2004.1257445580. The cubic root of 4016520 is about 158.9583372507.

The spelling of 4016520 in words is "four million, sixteen thousand, five hundred twenty".