4240140 has 48 divisors (see below), whose sum is σ = 12573792. Its totient is φ = 1063936.

The previous prime is 4240139. The next prime is 4240147. The reversal of 4240140 is 410424.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (4240147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1059 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (261954).

Almost surely, 2^4240140 is an apocalyptic number.

It is an amenable number.

4240140 is an abundant number, since it is smaller than the sum of its proper divisors (8333652).

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

4240140 is a wasteful number, since it uses less digits than its factorization.

4240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4240140 is about 2059.1600229220. The cubic root of 4240140 is about 161.8552280776.

Adding to 4240140 its reverse (410424), we get a palindrome (4650564).

The spelling of 4240140 in words is "four million, two hundred forty thousand, one hundred forty".