1023412 has 12 divisors (see below), whose sum is σ = 1928836. Its totient is φ = 472320.

The previous prime is 1023409. The next prime is 1023413. The reversal of 1023412 is 2143201.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 376996 = 804^2 + 614^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1023392 and 1023401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9789 + ... + 9892.

2^1023412 is an apocalyptic number.

It is an amenable number.

1023412 is a deficient number, since it is larger than the sum of its proper divisors (905424).

1023412 is a wasteful number, since it uses less digits than its factorization.

1023412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19698 (or 19696 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1023412 is about 1011.6382752743. The cubic root of 1023412 is about 100.7743877566.

Adding to 1023412 its reverse (2143201), we get a palindrome (3166613).

The spelling of 1023412 in words is "one million, twenty-three thousand, four hundred twelve".