1294642 has 4 divisors (see below), whose sum is σ = 1941966. Its totient is φ = 647320.

The previous prime is 1294639. The next prime is 1294649. The reversal of 1294642 is 2464921.

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., 1125721 + 168921 = 1061^2 + 411^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1294642.

It is not an unprimeable number, because it can be changed into a prime (1294649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323659 + ... + 323662.

2^1294642 is an apocalyptic number.

1294642 is a deficient number, since it is larger than the sum of its proper divisors (647324).

1294642 is an equidigital number, since it uses as much as digits as its factorization.

1294642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647323.

The product of its digits is 3456, while the sum is 28.

The square root of 1294642 is about 1137.8233606320. The cubic root of 1294642 is about 108.9891412464.

It can be divided in two parts, 1294 and 642, that added together give a square (1936 = 44²).

The spelling of 1294642 in words is "one million, two hundred ninety-four thousand, six hundred forty-two".