1020261794 has 8 divisors (see below), whose sum is σ = 1567719468. Its totient is φ = 497688640.

The previous prime is 1020261779. The next prime is 1020261821. The reversal of 1020261794 is 4971620201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 982007569 + 38254225 = 31337^2 + 6185^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1020261794.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6221027 + ... + 6221190.

Almost surely, 2^1020261794 is an apocalyptic number.

1020261794 is a deficient number, since it is larger than the sum of its proper divisors (547457674).

1020261794 is a wasteful number, since it uses less digits than its factorization.

1020261794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12442260.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1020261794 is about 31941.5371264440. The cubic root of 1020261794 is about 1006.7088223847.

Adding to 1020261794 its reverse (4971620201), we get a palindrome (5991881995).

The spelling of 1020261794 in words is "one billion, twenty million, two hundred sixty-one thousand, seven hundred ninety-four".