42611858 has 4 divisors (see below), whose sum is σ = 63917790. Its totient is φ = 21305928.

The previous prime is 42611837. The next prime is 42611861. The reversal of 42611858 is 85811624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28270489 + 14341369 = 5317^2 + 3787^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10652963 + ... + 10652966.

Almost surely, 2^42611858 is an apocalyptic number.

42611858 is a deficient number, since it is larger than the sum of its proper divisors (21305932).

42611858 is a wasteful number, since it uses less digits than its factorization.

42611858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21305931.

The product of its digits is 15360, while the sum is 35.

The square root of 42611858 is about 6527.7758846333. The cubic root of 42611858 is about 349.2824974667.

The spelling of 42611858 in words is "forty-two million, six hundred eleven thousand, eight hundred fifty-eight".