1021394 has 16 divisors (see below), whose sum is σ = 1770336. Its totient is φ = 436800.

The previous prime is 1021387. The next prime is 1021403. The reversal of 1021394 is 4931201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (110646).

2^1021394 is an apocalyptic number.

1021394 is a deficient number, since it is larger than the sum of its proper divisors (748942).

1021394 is a wasteful number, since it uses less digits than its factorization.

1021394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1021394 is about 1010.6403910393. The cubic root of 1021394 is about 100.7081073381.

Adding to 1021394 its reverse (4931201), we get a palindrome (5952595).

The spelling of 1021394 in words is "one million, twenty-one thousand, three hundred ninety-four".