1020690841 has 8 divisors (see below), whose sum is σ = 1060085504. Its totient is φ = 981700560.

The previous prime is 1020690833. The next prime is 1020690883. The reversal of 1020690841 is 1480960201.

It is a happy number.

1020690841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1020690841 - 2³ = 1020690833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020693841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95946 + ... + 106051.

It is an arithmetic number, because the mean of its divisors is an integer number (132510688).

Almost surely, 2^1020690841 is an apocalyptic number.

It is an amenable number.

1020690841 is a deficient number, since it is larger than the sum of its proper divisors (39394663).

1020690841 is a wasteful number, since it uses less digits than its factorization.

1020690841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202191.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1020690841 is about 31948.2525500222. The cubic root of 1020690841 is about 1006.8499184809.

The spelling of 1020690841 in words is "one billion, twenty million, six hundred ninety thousand, eight hundred forty-one".