4212042140 has 24 divisors (see below), whose sum is σ = 8865734640. Its totient is φ = 1680922368.

The previous prime is 4212042119. The next prime is 4212042143. The reversal of 4212042140 is 412402124.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212042143) 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, 234530 + ... + 251849.

It is an arithmetic number, because the mean of its divisors is an integer number (369405610).

Almost surely, 2^4212042140 is an apocalyptic number.

It is an amenable number.

4212042140 is an abundant number, since it is smaller than the sum of its proper divisors (4653692500).

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

4212042140 is a wasteful number, since it uses less digits than its factorization.

4212042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486821 (or 486819 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4212042140 is about 64900.2476112380. The cubic root of 4212042140 is about 1614.9691693770.

Adding to 4212042140 its reverse (412402124), we get a palindrome (4624444264).

The spelling of 4212042140 in words is "four billion, two hundred twelve million, forty-two thousand, one hundred forty".