42770774 has 4 divisors (see below), whose sum is σ = 64156164. Its totient is φ = 21385386.

The previous prime is 42770771. The next prime is 42770801. The reversal of 42770774 is 47707724.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42770771) by changing a digit.

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 as a sum of consecutive naturals, namely, 10692692 + ... + 10692695.

It is an arithmetic number, because the mean of its divisors is an integer number (16039041).

Almost surely, 2^42770774 is an apocalyptic number.

42770774 is a deficient number, since it is larger than the sum of its proper divisors (21385390).

42770774 is a wasteful number, since it uses less digits than its factorization.

42770774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21385389.

The product of its (nonzero) digits is 76832, while the sum is 38.

The square root of 42770774 is about 6539.9368498480. The cubic root of 42770774 is about 349.7161617156.

The spelling of 42770774 in words is "forty-two million, seven hundred seventy thousand, seven hundred seventy-four".