42677786 has 24 divisors (see below), whose sum is σ = 69494976. Its totient is φ = 19643840.

The previous prime is 42677783. The next prime is 42677807. The reversal of 42677786 is 68777624.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42677786.

It is not an unprimeable number, because it can be changed into a prime (42677783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26381 + ... + 27951.

It is an arithmetic number, because the mean of its divisors is an integer number (2895624).

Almost surely, 2^42677786 is an apocalyptic number.

42677786 is a deficient number, since it is larger than the sum of its proper divisors (26817190).

42677786 is a wasteful number, since it uses less digits than its factorization.

42677786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1637 counting only the distinct ones).

The product of its digits is 790272, while the sum is 47.

The square root of 42677786 is about 6532.8237386294. The cubic root of 42677786 is about 349.4625383592.

The spelling of 42677786 in words is "forty-two million, six hundred seventy-seven thousand, seven hundred eighty-six".