4140540 has 36 divisors (see below), whose sum is σ = 12560184. Its totient is φ = 1104096.

The previous prime is 4140511. The next prime is 4140557. The reversal of 4140540 is 450414.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (18) 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 (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11322 + ... + 11681.

It is an arithmetic number, because the mean of its divisors is an integer number (348894).

Almost surely, 2^4140540 is an apocalyptic number.

It is an amenable number.

4140540 is an abundant number, since it is smaller than the sum of its proper divisors (8419644).

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

4140540 is a wasteful number, since it uses less digits than its factorization.

4140540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23018 (or 23013 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4140540 is about 2034.8316883713. The cubic root of 4140540 is about 160.5778584021.

Adding to 4140540 its reverse (450414), we get a palindrome (4590954).

The spelling of 4140540 in words is "four million, one hundred forty thousand, five hundred forty".