42679420 has 48 divisors (see below), whose sum is σ = 104186880. Its totient is φ = 14382144.

The previous prime is 42679409. The next prime is 42679433. The reversal of 42679420 is 2497624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5677 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (2170560).

Almost surely, 2^42679420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42679420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52093440).

42679420 is an abundant number, since it is smaller than the sum of its proper divisors (61507460).

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

42679420 is a wasteful number, since it uses less digits than its factorization.

42679420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5242 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 42679420 is about 6532.9487982074. The cubic root of 42679420 is about 349.4669982476.

The spelling of 42679420 in words is "forty-two million, six hundred seventy-nine thousand, four hundred twenty".