6142394421 has 48 divisors (see below), whose sum is σ = 9478909440. Its totient is φ = 3823902720.

The previous prime is 6142394381. The next prime is 6142394483. The reversal of 6142394421 is 1244932416.

6142394421 is a `hidden beast` number, since 6 + 142 + 3 + 94 + 421 = 666.

It is not a de Polignac number, because 6142394421 - 2¹⁵ = 6142361653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6142394221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7481191 + ... + 7482011.

It is an arithmetic number, because the mean of its divisors is an integer number (197477280).

Almost surely, 2^6142394421 is an apocalyptic number.

It is an amenable number.

6142394421 is a deficient number, since it is larger than the sum of its proper divisors (3336515019).

6142394421 is a wasteful number, since it uses less digits than its factorization.

6142394421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1663 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6142394421 is about 78373.4293048352. The cubic root of 6142394421 is about 1831.3832317250.

The spelling of 6142394421 in words is "six billion, one hundred forty-two million, three hundred ninety-four thousand, four hundred twenty-one".