42702813 has 24 divisors (see below), whose sum is σ = 62836800. Its totient is φ = 27941760.

The previous prime is 42702797. The next prime is 42702833. The reversal of 42702813 is 31820724.

It is not a de Polignac number, because 42702813 - 2⁴ = 42702797 is a prime.

It is a super-2 number, since 2×42702813² = 3647060476225938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42702833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202278 + ... + 202488.

It is an arithmetic number, because the mean of its divisors is an integer number (2618200).

Almost surely, 2^42702813 is an apocalyptic number.

It is an amenable number.

42702813 is a deficient number, since it is larger than the sum of its proper divisors (20133987).

42702813 is a wasteful number, since it uses less digits than its factorization.

42702813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 42702813 is about 6534.7389389324. The cubic root of 42702813 is about 349.5308353252.

The spelling of 42702813 in words is "forty-two million, seven hundred two thousand, eight hundred thirteen".