42702943 has 4 divisors (see below), whose sum is σ = 42861960. Its totient is φ = 42543928.

The previous prime is 42702941. The next prime is 42702949. The reversal of 42702943 is 34920724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42702943 - 2¹ = 42702941 is a prime.

It is a super-2 number, since 2×42702943² = 3647082681722498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42702941) 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, 79105 + ... + 79642.

It is an arithmetic number, because the mean of its divisors is an integer number (10715490).

Almost surely, 2^42702943 is an apocalyptic number.

42702943 is a deficient number, since it is larger than the sum of its proper divisors (159017).

42702943 is a wasteful number, since it uses less digits than its factorization.

42702943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159016.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 42702943 is about 6534.7488857645. The cubic root of 42702943 is about 349.5311900166.

The spelling of 42702943 in words is "forty-two million, seven hundred two thousand, nine hundred forty-three".