28942419 has 8 divisors (see below), whose sum is σ = 42098112. Its totient is φ = 17540840.

The previous prime is 28942393. The next prime is 28942429. The reversal of 28942419 is 91424982.

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

It is a cyclic number.

It is not a de Polignac number, because 28942419 - 2⁵ = 28942387 is a prime.

It is a super-2 number, since 2×28942419² = 1675327235143122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28942429) 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, 438489 + ... + 438554.

It is an arithmetic number, because the mean of its divisors is an integer number (5262264).

Almost surely, 2^28942419 is an apocalyptic number.

28942419 is a deficient number, since it is larger than the sum of its proper divisors (13155693).

28942419 is a wasteful number, since it uses less digits than its factorization.

28942419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877057.

The product of its digits is 41472, while the sum is 39.

The square root of 28942419 is about 5379.8158890430. The cubic root of 28942419 is about 307.0282063726.

The spelling of 28942419 in words is "twenty-eight million, nine hundred forty-two thousand, four hundred nineteen".