1005492 has 12 divisors (see below), whose sum is σ = 2346176. Its totient is φ = 335160.

The previous prime is 1005481. The next prime is 1005493. The reversal of 1005492 is 2945001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1005492² = 2022028324128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41884 + ... + 41907.

2^1005492 is an apocalyptic number.

1005492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1005492 is an abundant number, since it is smaller than the sum of its proper divisors (1340684).

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

1005492 is a wasteful number, since it uses less digits than its factorization.

1005492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83798 (or 83796 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1005492 is about 1002.7422400597. The cubic root of 1005492 is about 100.1827325514.

The spelling of 1005492 in words is "one million, five thousand, four hundred ninety-two".