42098511 has 64 divisors (see below), whose sum is σ = 75091968. Its totient is φ = 20348928.

The previous prime is 42098467. The next prime is 42098521. The reversal of 42098511 is 11589024.

It is a happy number.

It is not a de Polignac number, because 42098511 - 2⁹ = 42097999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42098521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218031 + ... + 218223.

It is an arithmetic number, because the mean of its divisors is an integer number (1173312).

Almost surely, 2^42098511 is an apocalyptic number.

42098511 is a deficient number, since it is larger than the sum of its proper divisors (32993457).

42098511 is a wasteful number, since it uses less digits than its factorization.

42098511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 42098511 is about 6488.3365356615. The cubic root of 42098511 is about 347.8742196382.

It can be divided in two parts, 4209 and 8511, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 42098511 in words is "forty-two million, ninety-eight thousand, five hundred eleven".