42464340 has 72 divisors (see below), whose sum is σ = 129434760. Its totient is φ = 11268864.

The previous prime is 42464333. The next prime is 42464347. The reversal of 42464340 is 4346424.

42464340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42464333) and next prime (42464347).

It can be written as a sum of positive squares in 4 ways, for example, as 2547216 + 39917124 = 1596^2 + 6318^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42464347) 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 23 ways as a sum of consecutive naturals, for example, 47982 + ... + 48858.

It is an arithmetic number, because the mean of its divisors is an integer number (1797705).

Almost surely, 2^42464340 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 42464340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64717380).

42464340 is an abundant number, since it is smaller than the sum of its proper divisors (86970420).

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

42464340 is a wasteful number, since it uses less digits than its factorization.

42464340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 42464340 is about 6516.4668341057. The cubic root of 42464340 is about 348.8789710684.

The spelling of 42464340 in words is "forty-two million, four hundred sixty-four thousand, three hundred forty".