42406460 has 24 divisors (see below), whose sum is σ = 89975760. Its totient is φ = 16786944.

The previous prime is 42406459. The next prime is 42406501. The reversal of 42406460 is 6460424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8990 + ... + 12869.

It is an arithmetic number, because the mean of its divisors is an integer number (3748990).

Almost surely, 2^42406460 is an apocalyptic number.

It is an amenable number.

42406460 is an abundant number, since it is smaller than the sum of its proper divisors (47569300).

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

42406460 is a wasteful number, since it uses less digits than its factorization.

42406460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21965 (or 21963 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 42406460 is about 6512.0242628541. The cubic root of 42406460 is about 348.7203886251.

Adding to 42406460 its reverse (6460424), we get a palindrome (48866884).

The spelling of 42406460 in words is "forty-two million, four hundred six thousand, four hundred sixty".