42845224 has 24 divisors (see below), whose sum is σ = 83024730. Its totient is φ = 20727840.

The previous prime is 42845203. The next prime is 42845237. The reversal of 42845224 is 42254824.

It can be written as a sum of positive squares in only one way, i.e., 42380100 + 465124 = 6510^2 + 682^2 .

It is a super-2 number, since 2×42845224² = 3671426439220352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4902 + ... + 10474.

Almost surely, 2^42845224 is an apocalyptic number.

It is an amenable number.

42845224 is a deficient number, since it is larger than the sum of its proper divisors (40179506).

42845224 is a wasteful number, since it uses less digits than its factorization.

42845224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641 (or 5606 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 42845224 is about 6545.6263260287. The cubic root of 42845224 is about 349.9189581071.

The spelling of 42845224 in words is "forty-two million, eight hundred forty-five thousand, two hundred twenty-four".