1020538 has 8 divisors (see below), whose sum is σ = 1542240. Its totient is φ = 506460.

The previous prime is 1020529. The next prime is 1020541. The reversal of 1020538 is 8350201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1558 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (192780).

2^1020538 is an apocalyptic number.

1020538 is a deficient number, since it is larger than the sum of its proper divisors (521702).

1020538 is a wasteful number, since it uses less digits than its factorization.

1020538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1020538 is about 1010.2168084129. The cubic root of 1020538 is about 100.6799659831.

Adding to 1020538 its reverse (8350201), we get a palindrome (9370739).

The spelling of 1020538 in words is "one million, twenty thousand, five hundred thirty-eight".