42698881 has 8 divisors (see below), whose sum is σ = 43083144. Its totient is φ = 42316800.

The previous prime is 42698869. The next prime is 42698893. The reversal of 42698881 is 18889624.

It is an interprime number because it is at equal distance from previous prime (42698869) and next prime (42698893).

It can be written as a sum of positive squares in 4 ways, for example, as 21160000 + 21538881 = 4600^2 + 4641^2 .

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 42698881 - 2¹¹ = 42696833 is a prime.

It is a super-2 number, since 2×42698881² = 3646388877304322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42698801) 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, 93205 + ... + 93661.

It is an arithmetic number, because the mean of its divisors is an integer number (5385393).

Almost surely, 2^42698881 is an apocalyptic number.

It is an amenable number.

42698881 is a deficient number, since it is larger than the sum of its proper divisors (384263).

42698881 is a wasteful number, since it uses less digits than its factorization.

42698881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its digits is 221184, while the sum is 46.

The square root of 42698881 is about 6534.4380783660. The cubic root of 42698881 is about 349.5201069341.

The spelling of 42698881 in words is "forty-two million, six hundred ninety-eight thousand, eight hundred eighty-one".