42917146 has 8 divisors (see below), whose sum is σ = 68162580. Its totient is φ = 20196288.

The previous prime is 42917141. The next prime is 42917159. The reversal of 42917146 is 64171924.

It can be written as a sum of positive squares in 2 ways, for example, as 35868121 + 7049025 = 5989^2 + 2655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1262269 = 42917146 / (4 + 2 + 9 + 1 + 7 + 1 + 4 + 6).

It is not an unprimeable number, because it can be changed into a prime (42917141) 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, 631101 + ... + 631168.

Almost surely, 2^42917146 is an apocalyptic number.

42917146 is a deficient number, since it is larger than the sum of its proper divisors (25245434).

42917146 is a wasteful number, since it uses less digits than its factorization.

42917146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262288.

The product of its digits is 12096, while the sum is 34.

The square root of 42917146 is about 6551.1179198668. The cubic root of 42917146 is about 350.1146454360.

The spelling of 42917146 in words is "forty-two million, nine hundred seventeen thousand, one hundred forty-six".