1012390 has 16 divisors (see below), whose sum is σ = 1885680. Its totient is φ = 390880.

The previous prime is 1012379. The next prime is 1012397. The reversal of 1012390 is 932101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012397) 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, 1456 + ... + 2035.

It is an arithmetic number, because the mean of its divisors is an integer number (117855).

2^1012390 is an apocalyptic number.

1012390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012390 is a deficient number, since it is larger than the sum of its proper divisors (873290).

1012390 is a wasteful number, since it uses less digits than its factorization.

1012390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1012390 is about 1006.1759289508. The cubic root of 1012390 is about 100.4113059547.

Adding to 1012390 its reverse (932101), we get a palindrome (1944491).

The spelling of 1012390 in words is "one million, twelve thousand, three hundred ninety".