1276742 has 4 divisors (see below), whose sum is σ = 1915116. Its totient is φ = 638370.

The previous prime is 1276739. The next prime is 1276747. The reversal of 1276742 is 2476721.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319184 + ... + 319187.

It is an arithmetic number, because the mean of its divisors is an integer number (478779).

2^1276742 is an apocalyptic number.

1276742 is a deficient number, since it is larger than the sum of its proper divisors (638374).

1276742 is an equidigital number, since it uses as much as digits as its factorization.

1276742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638373.

The product of its digits is 4704, while the sum is 29.

The square root of 1276742 is about 1129.9300863328. The cubic root of 1276742 is about 108.4845058467.

The spelling of 1276742 in words is "one million, two hundred seventy-six thousand, seven hundred forty-two".