1021244424 has 16 divisors (see below), whose sum is σ = 2553111120. Its totient is φ = 340414800.

The previous prime is 1021244407. The next prime is 1021244467. The reversal of 1021244424 is 4244421201.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 42551851 = 1021244424 / (1 + 0 + 2 + 1 + 2 + 4 + 4 + 4 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 1021244394 and 1021244403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21275902 + ... + 21275949.

It is an arithmetic number, because the mean of its divisors is an integer number (159569445).

Almost surely, 2^1021244424 is an apocalyptic number.

It is an amenable number.

1021244424 is an abundant number, since it is smaller than the sum of its proper divisors (1531866696).

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

1021244424 is a wasteful number, since it uses less digits than its factorization.

1021244424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42551860 (or 42551856 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1021244424 is about 31956.9151202052. The cubic root of 1021244424 is about 1007.0319109904.

Adding to 1021244424 its reverse (4244421201), we get a palindrome (5265665625).

The spelling of 1021244424 in words is "one billion, twenty-one million, two hundred forty-four thousand, four hundred twenty-four".