7458638142 has 8 divisors (see below), whose sum is σ = 14917276296. Its totient is φ = 2486212712.

The previous prime is 7458638141. The next prime is 7458638171. The reversal of 7458638142 is 2418368547.

7458638142 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

7458638142 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7458638091 and 7458638100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7458638141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621553173 + ... + 621553184.

It is an arithmetic number, because the mean of its divisors is an integer number (1864659537).

Almost surely, 2^7458638142 is an apocalyptic number.

7458638142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7458638142 is a wasteful number, since it uses less digits than its factorization.

7458638142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243106362.

The product of its digits is 1290240, while the sum is 48.

The square root of 7458638142 is about 86363.4074246726. The cubic root of 7458638142 is about 1953.8288253722.

The spelling of 7458638142 in words is "seven billion, four hundred fifty-eight million, six hundred thirty-eight thousand, one hundred forty-two".