1274642 has 4 divisors (see below), whose sum is σ = 1911966. Its totient is φ = 637320.

The previous prime is 1274633. The next prime is 1274671. The reversal of 1274642 is 2464721.

It is a Cunningham number, because it is equal to 1129²+1.

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., 1274641 + 1 = 1129^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318659 + ... + 318662.

2^1274642 is an apocalyptic number.

1274642 is a deficient number, since it is larger than the sum of its proper divisors (637324).

1274642 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 8 representation: 1274642 = (4671422)₈.

1274642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637323.

The product of its digits is 2688, while the sum is 26.

The square root of 1274642 is about 1129.0004428697. Note that the first 3 decimals coincide. The cubic root of 1274642 is about 108.4249943499.

The spelling of 1274642 in words is "one million, two hundred seventy-four thousand, six hundred forty-two".