1366225426 has 8 divisors (see below), whose sum is σ = 2050688304. Its totient is φ = 682662660.

The previous prime is 1366225423. The next prime is 1366225429. The reversal of 1366225426 is 6245226631.

It is an interprime number because it is at equal distance from previous prime (1366225423) and next prime (1366225429).

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

It is not an unprimeable number, because it can be changed into a prime (1366225423) 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, 221220 + ... + 227311.

It is an arithmetic number, because the mean of its divisors is an integer number (256336038).

Almost surely, 2^1366225426 is an apocalyptic number.

1366225426 is a deficient number, since it is larger than the sum of its proper divisors (684462878).

1366225426 is a wasteful number, since it uses less digits than its factorization.

1366225426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450056.

The product of its digits is 103680, while the sum is 37.

The square root of 1366225426 is about 36962.4867399367. The cubic root of 1366225426 is about 1109.6196045239.

The spelling of 1366225426 in words is "one billion, three hundred sixty-six million, two hundred twenty-five thousand, four hundred twenty-six".