42770706 has 16 divisors (see below), whose sum is σ = 93318048. Its totient is φ = 12960800.

The previous prime is 42770701. The next prime is 42770713. The reversal of 42770706 is 60707724.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42770701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323955 + ... + 324086.

It is an arithmetic number, because the mean of its divisors is an integer number (5832378).

Almost surely, 2^42770706 is an apocalyptic number.

42770706 is an abundant number, since it is smaller than the sum of its proper divisors (50547342).

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

42770706 is a wasteful number, since it uses less digits than its factorization.

42770706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648057.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 42770706 is about 6539.9316510190. The cubic root of 42770706 is about 349.7159763810.

The spelling of 42770706 in words is "forty-two million, seven hundred seventy thousand, seven hundred six".