42793984 has 66 divisors (see below), whose sum is σ = 90559280. Its totient is φ = 20207616.

The previous prime is 42793973. The next prime is 42793991. The reversal of 42793984 is 48939724.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541657 + ... + 541735.

Almost surely, 2^42793984 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 42793984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45279640).

42793984 is an abundant number, since it is smaller than the sum of its proper divisors (47765296).

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

42793984 is an equidigital number, since it uses as much as digits as its factorization.

42793984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 104 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 42793984 is about 6541.7110911443. The cubic root of 42793984 is about 349.7794092992.

The spelling of 42793984 in words is "forty-two million, seven hundred ninety-three thousand, nine hundred eighty-four".