1000730 has 32 divisors (see below), whose sum is σ = 1987200. Its totient is φ = 361152.

The previous prime is 1000723. The next prime is 1000763. The reversal of 1000730 is 370001.

1000730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4256 + ... + 4484.

It is an arithmetic number, because the mean of its divisors is an integer number (62100).

2^1000730 is an apocalyptic number.

1000730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000730 is a deficient number, since it is larger than the sum of its proper divisors (986470).

1000730 is a wasteful number, since it uses less digits than its factorization.

1000730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 1000730 is about 1000.3649334118. The cubic root of 1000730 is about 100.0243274146.

Adding to 1000730 its reverse (370001), we get a palindrome (1370731).

The spelling of 1000730 in words is "one million, seven hundred thirty", and thus it is an aban number.