42345766 has 4 divisors (see below), whose sum is σ = 63518652. Its totient is φ = 21172882.

The previous prime is 42345763. The next prime is 42345791. The reversal of 42345766 is 66754324.

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 (42345761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10586440 + ... + 10586443.

It is an arithmetic number, because the mean of its divisors is an integer number (15879663).

Almost surely, 2^42345766 is an apocalyptic number.

42345766 is a deficient number, since it is larger than the sum of its proper divisors (21172886).

42345766 is a wasteful number, since it uses less digits than its factorization.

42345766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21172885.

The product of its digits is 120960, while the sum is 37.

The square root of 42345766 is about 6507.3624457225. The cubic root of 42345766 is about 348.5539411794.

It can be divided in two parts, 4234 and 5766, that added together give a 4-th power (10000 = 10⁴).

The spelling of 42345766 in words is "forty-two million, three hundred forty-five thousand, seven hundred sixty-six".