7142021420 has 24 divisors (see below), whose sum is σ = 14999877648. Its totient is φ = 2856497600.

The previous prime is 7142021353. The next prime is 7142021423. The reversal of 7142021420 is 241202417.

It is not an unprimeable number, because it can be changed into a prime (7142021423) 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, 285830 + ... + 309810.

It is an arithmetic number, because the mean of its divisors is an integer number (624994902).

Almost surely, 2^7142021420 is an apocalyptic number.

It is an amenable number.

7142021420 is an abundant number, since it is smaller than the sum of its proper divisors (7857856228).

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

7142021420 is a wasteful number, since it uses less digits than its factorization.

7142021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38881 (or 38879 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 7142021420 is about 84510.4811251244. The cubic root of 7142021420 is about 1925.7816734397.

Adding to 7142021420 its reverse (241202417), we get a palindrome (7383223837).

The spelling of 7142021420 in words is "seven billion, one hundred forty-two million, twenty-one thousand, four hundred twenty".