42486813 has 12 divisors (see below), whose sum is σ = 61440288. Its totient is φ = 28292040.

The previous prime is 42486797. The next prime is 42486817. The reversal of 42486813 is 31868424.

It is not a de Polignac number, because 42486813 - 2⁴ = 42486797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42486817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7656 + ... + 11982.

It is an arithmetic number, because the mean of its divisors is an integer number (5120024).

Almost surely, 2^42486813 is an apocalyptic number.

It is an amenable number.

42486813 is a deficient number, since it is larger than the sum of its proper divisors (18953475).

42486813 is a wasteful number, since it uses less digits than its factorization.

42486813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424 (or 5421 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 42486813 is about 6518.1909300050. The cubic root of 42486813 is about 348.9405048513.

The spelling of 42486813 in words is "forty-two million, four hundred eighty-six thousand, eight hundred thirteen".