42439461 has 4 divisors (see below), whose sum is σ = 56585952. Its totient is φ = 28292972.

The previous prime is 42439427. The next prime is 42439471. The reversal of 42439461 is 16493424.

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 42439461 - 2¹⁰ = 42438437 is a prime.

It is a super-3 number, since 3×42439461³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42439471) 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, 7073241 + ... + 7073246.

It is an arithmetic number, because the mean of its divisors is an integer number (14146488).

Almost surely, 2^42439461 is an apocalyptic number.

It is an amenable number.

42439461 is a deficient number, since it is larger than the sum of its proper divisors (14146491).

42439461 is a wasteful number, since it uses less digits than its factorization.

42439461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14146490.

The product of its digits is 20736, while the sum is 33.

The square root of 42439461 is about 6514.5576212050. The cubic root of 42439461 is about 348.8108240414.

The spelling of 42439461 in words is "forty-two million, four hundred thirty-nine thousand, four hundred sixty-one".