1264192 has 14 divisors (see below), whose sum is σ = 2508758. Its totient is φ = 632064.

The previous prime is 1264189. The next prime is 1264199. The reversal of 1264192 is 2914621.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 295936 = 984^2 + 544^2 .

It is not an unprimeable number, because it can be changed into a prime (1264199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9813 + ... + 9940.

It is an arithmetic number, because the mean of its divisors is an integer number (179197).

2^1264192 is an apocalyptic number.

It is an amenable number.

1264192 is a deficient number, since it is larger than the sum of its proper divisors (1244566).

1264192 is an equidigital number, since it uses as much as digits as its factorization.

1264192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19765 (or 19755 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 1264192 is about 1124.3629307301. The cubic root of 1264192 is about 108.1278777899.

The spelling of 1264192 in words is "one million, two hundred sixty-four thousand, one hundred ninety-two".