42338977 has 4 divisors (see below), whose sum is σ = 42573076. Its totient is φ = 42104880.

The previous prime is 42338939. The next prime is 42338987. The reversal of 42338977 is 77983324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4835601 + 37503376 = 2199^2 + 6124^2 .

It is a cyclic number.

It is not a de Polignac number, because 42338977 - 2¹¹ = 42336929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42338917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116778 + ... + 117139.

It is an arithmetic number, because the mean of its divisors is an integer number (10643269).

Almost surely, 2^42338977 is an apocalyptic number.

It is an amenable number.

42338977 is a deficient number, since it is larger than the sum of its proper divisors (234099).

42338977 is a wasteful number, since it uses less digits than its factorization.

42338977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234098.

The product of its digits is 254016, while the sum is 43.

The square root of 42338977 is about 6506.8407848971. The cubic root of 42338977 is about 348.5353131133.

The spelling of 42338977 in words is "forty-two million, three hundred thirty-eight thousand, nine hundred seventy-seven".