1020424 has 16 divisors (see below), whose sum is σ = 1925100. Its totient is φ = 507072.

The previous prime is 1020419. The next prime is 1020431. The reversal of 1020424 is 4240201.

It can be written as a sum of positive squares in 2 ways, for example, as 1020100 + 324 = 1010^2 + 18^2 .

It is a plaindrome in base 7.

It is a zygodrome in base 7.

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, 1554 + ... + 2110.

2^1020424 is an apocalyptic number.

It is an amenable number.

1020424 is a deficient number, since it is larger than the sum of its proper divisors (904676).

1020424 is a wasteful number, since it uses less digits than its factorization.

1020424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1020424 is about 1010.1603833055. The cubic root of 1020424 is about 100.6762169986.

Adding to 1020424 its reverse (4240201), we get a palindrome (5260625).

It can be divided in two parts, 1020 and 424, that added together give a square (1444 = 38²).

The spelling of 1020424 in words is "one million, twenty thousand, four hundred twenty-four".