42775912 has 8 divisors (see below), whose sum is σ = 80204850. Its totient is φ = 21387952.

The previous prime is 42775907. The next prime is 42775913. The reversal of 42775912 is 21957724.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 3663396 = 6254^2 + 1914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42775913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2673487 + ... + 2673502.

Almost surely, 2^42775912 is an apocalyptic number.

It is an amenable number.

42775912 is a deficient number, since it is larger than the sum of its proper divisors (37428938).

42775912 is a wasteful number, since it uses less digits than its factorization.

42775912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346995 (or 5346991 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 42775912 is about 6540.3296553003. The cubic root of 42775912 is about 349.7301648111.

The spelling of 42775912 in words is "forty-two million, seven hundred seventy-five thousand, nine hundred twelve".