42606658 has 8 divisors (see below), whose sum is σ = 67669452. Its totient is φ = 20050176.

The previous prime is 42606653. The next prime is 42606659. The reversal of 42606658 is 85660624.

It can be written as a sum of positive squares in 2 ways, for example, as 42419169 + 187489 = 6513^2 + 433^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42606653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626535 + ... + 626602.

Almost surely, 2^42606658 is an apocalyptic number.

42606658 is a deficient number, since it is larger than the sum of its proper divisors (25062794).

42606658 is a wasteful number, since it uses less digits than its factorization.

42606658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253156.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 42606658 is about 6527.3775744935. The cubic root of 42606658 is about 349.2682890361.

It can be divided in two parts, 42606 and 658, that added together give a square (43264 = 208²).

The spelling of 42606658 in words is "forty-two million, six hundred six thousand, six hundred fifty-eight".