42177434 has 8 divisors (see below), whose sum is σ = 68132820. Its totient is φ = 19466496.

The previous prime is 42177433. The next prime is 42177439. The reversal of 42177434 is 43477124.

It can be written as a sum of positive squares in 2 ways, for example, as 41280625 + 896809 = 6425^2 + 947^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 42177434.

It is not an unprimeable number, because it can be changed into a prime (42177431) 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, 811079 + ... + 811130.

Almost surely, 2^42177434 is an apocalyptic number.

42177434 is a deficient number, since it is larger than the sum of its proper divisors (25955386).

42177434 is a wasteful number, since it uses less digits than its factorization.

42177434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622224.

The product of its digits is 18816, while the sum is 32.

The square root of 42177434 is about 6494.4156011145. The cubic root of 42177434 is about 348.0914730693.

The spelling of 42177434 in words is "forty-two million, one hundred seventy-seven thousand, four hundred thirty-four".