1228738 has 8 divisors (see below), whose sum is σ = 2106432. Its totient is φ = 526596.

The previous prime is 1228693. The next prime is 1228741. The reversal of 1228738 is 8378221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43870 + ... + 43897.

It is an arithmetic number, because the mean of its divisors is an integer number (263304).

2^1228738 is an apocalyptic number.

1228738 is a deficient number, since it is larger than the sum of its proper divisors (877694).

1228738 is an equidigital number, since it uses as much as digits as its factorization.

1228738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87776.

The product of its digits is 5376, while the sum is 31.

The square root of 1228738 is about 1108.4845510877. The cubic root of 1228738 is about 107.1074705574.

The spelling of 1228738 in words is "one million, two hundred twenty-eight thousand, seven hundred thirty-eight".