42651224 has 32 divisors (see below), whose sum is σ = 99705600. Its totient is φ = 16617120.

The previous prime is 42651211. The next prime is 42651229. The reversal of 42651224 is 42215624.

It is a junction number, because it is equal to n+sod(n) for n = 42651193 and 42651202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651229) 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, 34004 + ... + 35235.

It is an arithmetic number, because the mean of its divisors is an integer number (3115800).

Almost surely, 2^42651224 is an apocalyptic number.

42651224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42651224 is an abundant number, since it is smaller than the sum of its proper divisors (57054376).

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

42651224 is a wasteful number, since it uses less digits than its factorization.

42651224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69263 (or 69259 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 42651224 is about 6530.7904575174. The cubic root of 42651224 is about 349.3900232701.

Adding to 42651224 its reverse (42215624), we get a palindrome (84866848).

Subtracting from 42651224 its reverse (42215624), we obtain a square (435600 = 660²).

It can be divided in two parts, 42651 and 224, that added together give a cube (42875 = 35³).

The spelling of 42651224 in words is "forty-two million, six hundred fifty-one thousand, two hundred twenty-four".