42079744 has 80 divisors (see below), whose sum is σ = 98208000. Its totient is φ = 17639424.

The previous prime is 42079729. The next prime is 42079747. The reversal of 42079744 is 44797024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42079747) 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, 211357 + ... + 211555.

It is an arithmetic number, because the mean of its divisors is an integer number (1227600).

Almost surely, 2^42079744 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 42079744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49104000).

42079744 is an abundant number, since it is smaller than the sum of its proper divisors (56128256).

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

42079744 is an equidigital number, since it uses as much as digits as its factorization.

42079744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 42079744 is about 6486.8901640154. The cubic root of 42079744 is about 347.8225192678.

The spelling of 42079744 in words is "forty-two million, seventy-nine thousand, seven hundred forty-four".