42893381 has 4 divisors (see below), whose sum is σ = 43085952. Its totient is φ = 42700812.

The previous prime is 42893371. The next prime is 42893399. The reversal of 42893381 is 18339824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42893381 - 2¹⁰ = 42892357 is a prime.

It is a super-2 number, since 2×42893381² = 3679684267222322, 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 (42893311) 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, 95951 + ... + 96396.

It is an arithmetic number, because the mean of its divisors is an integer number (10771488).

Almost surely, 2^42893381 is an apocalyptic number.

It is an amenable number.

42893381 is a deficient number, since it is larger than the sum of its proper divisors (192571).

42893381 is a wasteful number, since it uses less digits than its factorization.

42893381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192570.

The product of its digits is 41472, while the sum is 38.

The square root of 42893381 is about 6549.3038561362. The cubic root of 42893381 is about 350.0500091807.

The spelling of 42893381 in words is "forty-two million, eight hundred ninety-three thousand, three hundred eighty-one".