42747846 has 32 divisors (see below), whose sum is σ = 90125568. Its totient is φ = 13490400.

The previous prime is 42747841. The next prime is 42747907. The reversal of 42747846 is 64874724.

It is a junction number, because it is equal to n+sod(n) for n = 42747798 and 42747807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42747841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12405 + ... + 15471.

It is an arithmetic number, because the mean of its divisors is an integer number (2816424).

Almost surely, 2^42747846 is an apocalyptic number.

42747846 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42747846 is an abundant number, since it is smaller than the sum of its proper divisors (47377722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42747846 is a wasteful number, since it uses less digits than its factorization.

42747846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196.

The product of its digits is 301056, while the sum is 42.

The square root of 42747846 is about 6538.1836927391. The cubic root of 42747846 is about 349.6536601161.

The spelling of 42747846 in words is "forty-two million, seven hundred forty-seven thousand, eight hundred forty-six".