1276402 has 4 divisors (see below), whose sum is σ = 1914606. Its totient is φ = 638200.

The previous prime is 1276397. The next prime is 1276409. The reversal of 1276402 is 2046721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 192721 = 1041^2 + 439^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1276409) 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 as a sum of consecutive naturals, namely, 319099 + ... + 319102.

2^1276402 is an apocalyptic number.

1276402 is a deficient number, since it is larger than the sum of its proper divisors (638204).

1276402 is an equidigital number, since it uses as much as digits as its factorization.

1276402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638203.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1276402 is about 1129.7796245286. The cubic root of 1276402 is about 108.4748750817.

The spelling of 1276402 in words is "one million, two hundred seventy-six thousand, four hundred two".