42814661 has 8 divisors (see below), whose sum is σ = 45884544. Its totient is φ = 39845520.

The previous prime is 42814649. The next prime is 42814663. The reversal of 42814661 is 16641824.

42814661 = T₁₉₁₈ + T₁₉₁₉ + ... + T₁₉₄₀.

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

It is a cyclic number.

It is not a de Polignac number, because 42814661 - 2¹⁰ = 42813637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42814663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24305 + ... + 26006.

It is an arithmetic number, because the mean of its divisors is an integer number (5735568).

Almost surely, 2^42814661 is an apocalyptic number.

It is an amenable number.

42814661 is a deficient number, since it is larger than the sum of its proper divisors (3069883).

42814661 is a wasteful number, since it uses less digits than its factorization.

42814661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50371.

The product of its digits is 9216, while the sum is 32.

The square root of 42814661 is about 6543.2912971990. The cubic root of 42814661 is about 349.8357351629.

The spelling of 42814661 in words is "forty-two million, eight hundred fourteen thousand, six hundred sixty-one".