1020411 has 16 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 582984.

The previous prime is 1020407. The next prime is 1020413. The reversal of 1020411 is 1140201.

It is a happy number.

It is not a de Polignac number, because 1020411 - 2² = 1020407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1020393 and 1020402.

It is not an unprimeable number, because it can be changed into a prime (1020413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2511 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (108000).

2^1020411 is an apocalyptic number.

1020411 is a deficient number, since it is larger than the sum of its proper divisors (707589).

1020411 is an equidigital number, since it uses as much as digits as its factorization.

1020411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415 (or 5409 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1020411 is about 1010.1539486633. The cubic root of 1020411 is about 100.6757894651.

Adding to 1020411 its reverse (1140201), we get a palindrome (2160612).

It can be divided in two parts, 1020 and 411, that added together give a triangular number (1431 = T₅₃).

The spelling of 1020411 in words is "one million, twenty thousand, four hundred eleven".