42766380 has 60 divisors (see below), whose sum is σ = 134164800. Its totient is φ = 11403936.

The previous prime is 42766379. The next prime is 42766417. The reversal of 42766380 is 8366724.

42766380 is a `hidden beast` number, since 4 + 276 + 6 + 380 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11580 + ... + 14819.

It is an arithmetic number, because the mean of its divisors is an integer number (2236080).

Almost surely, 2^42766380 is an apocalyptic number.

It is an amenable number.

42766380 is an abundant number, since it is smaller than the sum of its proper divisors (91398420).

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

42766380 is a wasteful number, since it uses less digits than its factorization.

42766380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26420 (or 26409 counting only the distinct ones).

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

The square root of 42766380 is about 6539.6009052541. The cubic root of 42766380 is about 349.7041854267.

The spelling of 42766380 in words is "forty-two million, seven hundred sixty-six thousand, three hundred eighty".