42775430 has 16 divisors (see below), whose sum is σ = 77585904. Its totient is φ = 16979040.

The previous prime is 42775427. The next prime is 42775433. The reversal of 42775430 is 3457724.

It is an interprime number because it is at equal distance from previous prime (42775427) and next prime (42775433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775433) 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, 15017 + ... + 17636.

It is an arithmetic number, because the mean of its divisors is an integer number (4849119).

Almost surely, 2^42775430 is an apocalyptic number.

42775430 is a deficient number, since it is larger than the sum of its proper divisors (34810474).

42775430 is a wasteful number, since it uses less digits than its factorization.

42775430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32791.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 42775430 is about 6540.2928069009. The cubic root of 42775430 is about 349.7288512168.

It can be divided in two parts, 427 and 75430, that added together give a palindrome (75857).

The spelling of 42775430 in words is "forty-two million, seven hundred seventy-five thousand, four hundred thirty".