42386473 has 4 divisors (see below), whose sum is σ = 44617360. Its totient is φ = 40155588.

The previous prime is 42386453. The next prime is 42386479. The reversal of 42386473 is 37468324.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2^k-42386473 is a prime.

It is a super-2 number, since 2×42386473² = 3593226186759458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42386479) 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, 1115415 + ... + 1115452.

It is an arithmetic number, because the mean of its divisors is an integer number (11154340).

Almost surely, 2^42386473 is an apocalyptic number.

It is an amenable number.

42386473 is a deficient number, since it is larger than the sum of its proper divisors (2230887).

42386473 is a wasteful number, since it uses less digits than its factorization.

42386473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230886.

The product of its digits is 96768, while the sum is 37.

The square root of 42386473 is about 6510.4894593264. The cubic root of 42386473 is about 348.6655937526.

The spelling of 42386473 in words is "forty-two million, three hundred eighty-six thousand, four hundred seventy-three".