1005630 has 16 divisors (see below), whose sum is σ = 2413584. Its totient is φ = 268160.

The previous prime is 1005619. The next prime is 1005637. The reversal of 1005630 is 365001.

It is a super-2 number, since 2×1005630² = 2022583393800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005637) 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, 16731 + ... + 16790.

It is an arithmetic number, because the mean of its divisors is an integer number (150849).

2^1005630 is an apocalyptic number.

1005630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005630 is an abundant number, since it is smaller than the sum of its proper divisors (1407954).

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

1005630 is a wasteful number, since it uses less digits than its factorization.

1005630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33531.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1005630 is about 1002.8110490018. The cubic root of 1005630 is about 100.1873155763.

The spelling of 1005630 in words is "one million, five thousand, six hundred thirty".