42494177 has 4 divisors (see below), whose sum is σ = 46357296. Its totient is φ = 38631060.

The previous prime is 42494141. The next prime is 42494189. The reversal of 42494177 is 77149424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42494177 - 2⁶ = 42494113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42494177.

It is not an unprimeable number, because it can be changed into a prime (42494197) 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, 1931543 + ... + 1931564.

It is an arithmetic number, because the mean of its divisors is an integer number (11589324).

Almost surely, 2^42494177 is an apocalyptic number.

It is an amenable number.

42494177 is a deficient number, since it is larger than the sum of its proper divisors (3863119).

42494177 is a wasteful number, since it uses less digits than its factorization.

42494177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863118.

The product of its digits is 56448, while the sum is 38.

The square root of 42494177 is about 6518.7557861911. The cubic root of 42494177 is about 348.9606636508.

It can be divided in two parts, 4249417 and 7, that added together give a palindrome (4249424).

The spelling of 42494177 in words is "forty-two million, four hundred ninety-four thousand, one hundred seventy-seven".