8428142 has 8 divisors (see below), whose sum is σ = 12815616. Its totient is φ = 4156272.

The previous prime is 8428139. The next prime is 8428157. The reversal of 8428142 is 2418248.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28718 + ... + 29009.

It is an arithmetic number, because the mean of its divisors is an integer number (1601952).

Almost surely, 2^8428142 is an apocalyptic number.

8428142 is a deficient number, since it is larger than the sum of its proper divisors (4387474).

8428142 is a wasteful number, since it uses less digits than its factorization.

8428142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57802.

The product of its digits is 4096, while the sum is 29.

The square root of 8428142 is about 2903.1262459631. The cubic root of 8428142 is about 203.5060296394.

The spelling of 8428142 in words is "eight million, four hundred twenty-eight thousand, one hundred forty-two".