3240040142 has 4 divisors (see below), whose sum is σ = 4860060216. Its totient is φ = 1620020070.

The previous prime is 3240040123. The next prime is 3240040147. The reversal of 3240040142 is 2410400423.

3240040142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240040147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810010034 + ... + 810010037.

It is an arithmetic number, because the mean of its divisors is an integer number (1215015054).

Almost surely, 2^3240040142 is an apocalyptic number.

3240040142 is a deficient number, since it is larger than the sum of its proper divisors (1620020074).

3240040142 is a wasteful number, since it uses less digits than its factorization.

3240040142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620020073.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 3240040142 is about 56921.3504934660. The cubic root of 3240040142 is about 1479.7333556030.

Adding to 3240040142 its reverse (2410400423), we get a palindrome (5650440565).

The spelling of 3240040142 in words is "three billion, two hundred forty million, forty thousand, one hundred forty-two".