1268738 has 8 divisors (see below), whose sum is σ = 1926288. Its totient is φ = 626644.

The previous prime is 1268731. The next prime is 1268741. The reversal of 1268738 is 8378621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1268738² = 3219392225288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1268698 and 1268707.

It is not an unprimeable number, because it can be changed into a prime (1268731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3656 + ... + 3987.

It is an arithmetic number, because the mean of its divisors is an integer number (240786).

2^1268738 is an apocalyptic number.

1268738 is a deficient number, since it is larger than the sum of its proper divisors (657550).

1268738 is an equidigital number, since it uses as much as digits as its factorization.

1268738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728.

The product of its digits is 16128, while the sum is 35.

The square root of 1268738 is about 1126.3827058331. The cubic root of 1268738 is about 108.2573310447.

The spelling of 1268738 in words is "one million, two hundred sixty-eight thousand, seven hundred thirty-eight".