42936224 has 12 divisors (see below), whose sum is σ = 84530754. Its totient is φ = 21468096.

The previous prime is 42936221. The next prime is 42936233. The reversal of 42936224 is 42263924.

It can be written as a sum of positive squares in only one way, i.e., 34339600 + 8596624 = 5860^2 + 2932^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1341757 = 42936224 / (4 + 2 + 9 + 3 + 6 + 2 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (42936221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670847 + ... + 670910.

Almost surely, 2^42936224 is an apocalyptic number.

It is an amenable number.

42936224 is a deficient number, since it is larger than the sum of its proper divisors (41594530).

42936224 is a wasteful number, since it uses less digits than its factorization.

42936224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341767 (or 1341759 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 42936224 is about 6552.5738454442. The cubic root of 42936224 is about 350.1665166835.

The spelling of 42936224 in words is "forty-two million, nine hundred thirty-six thousand, two hundred twenty-four".