42066456 has 32 divisors (see below), whose sum is σ = 110702400. Its totient is φ = 13284000.

The previous prime is 42066433. The next prime is 42066461. The reversal of 42066456 is 65466024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45670 + ... + 46581.

It is an arithmetic number, because the mean of its divisors is an integer number (3459450).

Almost surely, 2^42066456 is an apocalyptic number.

It is an amenable number.

42066456 is an abundant number, since it is smaller than the sum of its proper divisors (68635944).

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

42066456 is a wasteful number, since it uses less digits than its factorization.

42066456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92279 (or 92275 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 42066456 is about 6485.8658635528. The cubic root of 42066456 is about 347.7859034539.

The spelling of 42066456 in words is "forty-two million, sixty-six thousand, four hundred fifty-six".