42043460 has 12 divisors (see below), whose sum is σ = 88291308. Its totient is φ = 16817376.

The previous prime is 42043453. The next prime is 42043481. The reversal of 42043460 is 6434024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26234884 + 15808576 = 5122^2 + 3976^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051067 + ... + 1051106.

It is an arithmetic number, because the mean of its divisors is an integer number (7357609).

Almost surely, 2^42043460 is an apocalyptic number.

It is an amenable number.

42043460 is an abundant number, since it is smaller than the sum of its proper divisors (46247848).

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

42043460 is a wasteful number, since it uses less digits than its factorization.

42043460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102182 (or 2102180 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 42043460 is about 6484.0928432588. The cubic root of 42043460 is about 347.7225184898.

Adding to 42043460 its reverse (6434024), we get a palindrome (48477484).

The spelling of 42043460 in words is "forty-two million, forty-three thousand, four hundred sixty".