42062681 has 4 divisors (see below), whose sum is σ = 42595200. Its totient is φ = 41530164.

The previous prime is 42062633. The next prime is 42062717. The reversal of 42062681 is 18626024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42062681 - 2¹⁸ = 41800537 is a prime.

It is a super-2 number, since 2×42062681² = 3538538265815522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42062621) 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, 266141 + ... + 266298.

It is an arithmetic number, because the mean of its divisors is an integer number (10648800).

Almost surely, 2^42062681 is an apocalyptic number.

It is an amenable number.

42062681 is a deficient number, since it is larger than the sum of its proper divisors (532519).

42062681 is an equidigital number, since it uses as much as digits as its factorization.

42062681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532518.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 42062681 is about 6485.5748395959. The cubic root of 42062681 is about 347.7754998276.

The spelling of 42062681 in words is "forty-two million, sixty-two thousand, six hundred eighty-one".