1002643224 has 64 divisors (see below), whose sum is σ = 2878416000. Its totient is φ = 287838720.

The previous prime is 1002643223. The next prime is 1002643249. The reversal of 1002643224 is 4223462001.

It is a super-2 number, since 2×1002643224² = 2010586869266228352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1002643194 and 1002643203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002643223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94929 + ... + 104960.

It is an arithmetic number, because the mean of its divisors is an integer number (44975250).

Almost surely, 2^1002643224 is an apocalyptic number.

It is an amenable number.

1002643224 is an abundant number, since it is smaller than the sum of its proper divisors (1875772776).

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

1002643224 is a wasteful number, since it uses less digits than its factorization.

1002643224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199928 (or 199924 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1002643224 is about 31664.5420620605. The cubic root of 1002643224 is about 1000.8802995120.

The spelling of 1002643224 in words is "one billion, two million, six hundred forty-three thousand, two hundred twenty-four".