4016540 has 24 divisors (see below), whose sum is σ = 9202032. Its totient is φ = 1460480.

The previous prime is 4016503. The next prime is 4016549. The reversal of 4016540 is 456104.

It is a happy number.

It is a super-2 number, since 2×4016540² = 32265187143200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4016549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8909 + ... + 9348.

It is an arithmetic number, because the mean of its divisors is an integer number (383418).

Almost surely, 2^4016540 is an apocalyptic number.

It is an amenable number.

4016540 is an abundant number, since it is smaller than the sum of its proper divisors (5185492).

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

4016540 is a wasteful number, since it uses less digits than its factorization.

4016540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18277 (or 18275 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4016540 is about 2004.1307342586. The cubic root of 4016540 is about 158.9586010911.

The spelling of 4016540 in words is "four million, sixteen thousand, five hundred forty".