42709464 has 128 divisors (see below), whose sum is σ = 138700800. Its totient is φ = 11923200.

The previous prime is 42709463. The next prime is 42709481. The reversal of 42709464 is 46490724.

42709464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42709463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70764 + ... + 71364.

It is an arithmetic number, because the mean of its divisors is an integer number (1083600).

Almost surely, 2^42709464 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 42709464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69350400).

42709464 is an abundant number, since it is smaller than the sum of its proper divisors (95991336).

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

42709464 is a wasteful number, since it uses less digits than its factorization.

42709464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 42709464 is about 6535.2478147351. The cubic root of 42709464 is about 349.5489809596.

The spelling of 42709464 in words is "forty-two million, seven hundred nine thousand, four hundred sixty-four".