42547234 has 16 divisors (see below), whose sum is σ = 67272120. Its totient is φ = 20151040.

The previous prime is 42547231. The next prime is 42547237. The reversal of 42547234 is 43274524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42547231) and next prime (42547237).

It can be written as a sum of positive squares in 4 ways, for example, as 37271025 + 5276209 = 6105^2 + 2297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42547196 and 42547205.

It is not an unprimeable number, because it can be changed into a prime (42547231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3847 + ... + 9994.

Almost surely, 2^42547234 is an apocalyptic number.

42547234 is a deficient number, since it is larger than the sum of its proper divisors (24724886).

42547234 is a wasteful number, since it uses less digits than its factorization.

42547234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13925.

The product of its digits is 26880, while the sum is 31.

The square root of 42547234 is about 6522.8240816383. The cubic root of 42547234 is about 349.1058373106.

The spelling of 42547234 in words is "forty-two million, five hundred forty-seven thousand, two hundred thirty-four".