42549234 has 32 divisors (see below), whose sum is σ = 104737920. Its totient is φ = 11221632.

The previous prime is 42549211. The next prime is 42549253. The reversal of 42549234 is 43294524.

It is a junction number, because it is equal to n+sod(n) for n = 42549195 and 42549204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38419 + ... + 39510.

It is an arithmetic number, because the mean of its divisors is an integer number (3273060).

Almost surely, 2^42549234 is an apocalyptic number.

42549234 is an abundant number, since it is smaller than the sum of its proper divisors (62188686).

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

42549234 is a wasteful number, since it uses less digits than its factorization.

42549234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77954.

The product of its digits is 34560, while the sum is 33.

The square root of 42549234 is about 6522.9773876659. The cubic root of 42549234 is about 349.1113073155. Note that the first 3 decimals are identical.

The spelling of 42549234 in words is "forty-two million, five hundred forty-nine thousand, two hundred thirty-four".