1009390 has 16 divisors (see below), whose sum is σ = 1829808. Its totient is φ = 400896.

The previous prime is 1009387. The next prime is 1009399. The reversal of 1009390 is 939001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009399) 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, 1669 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (114363).

2^1009390 is an apocalyptic number.

1009390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1009390 is a deficient number, since it is larger than the sum of its proper divisors (820418).

1009390 is a wasteful number, since it uses less digits than its factorization.

1009390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 1009390 is about 1004.6840299318. The cubic root of 1009390 is about 100.3120253889.

The spelling of 1009390 in words is "one million, nine thousand, three hundred ninety".