1020492 has 48 divisors (see below), whose sum is σ = 2889600. Its totient is φ = 308880.

The previous prime is 1020491. The next prime is 1020517. The reversal of 1020492 is 2940201.

1020492 = T₁₉₃ + T₁₉₄ + ... + T₂₃₆.

1020492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020491) 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, 759 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (60200).

2^1020492 is an apocalyptic number.

1020492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444800).

1020492 is an abundant number, since it is smaller than the sum of its proper divisors (1869108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020492 is a wasteful number, since it uses less digits than its factorization.

1020492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1020492 is about 1010.1940407664. The cubic root of 1020492 is about 100.6784532686.

Adding to 1020492 its reverse (2940201), we get a palindrome (3960693).

It can be divided in two parts, 10204 and 92, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 1020492 in words is "one million, twenty thousand, four hundred ninety-two".