1226643454 has 8 divisors (see below), whose sum is σ = 1844601048. Its totient is φ = 611776440.

The previous prime is 1226643443. The next prime is 1226643469. The reversal of 1226643454 is 4543466221.

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

It is a congruent number.

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, 771652 + ... + 773239.

It is an arithmetic number, because the mean of its divisors is an integer number (230575131).

Almost surely, 2^1226643454 is an apocalyptic number.

1226643454 is a deficient number, since it is larger than the sum of its proper divisors (617957594).

1226643454 is a wasteful number, since it uses less digits than its factorization.

1226643454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545290.

The product of its digits is 138240, while the sum is 37.

The square root of 1226643454 is about 35023.4700450998. The cubic root of 1226643454 is about 1070.4657633959.

It can be divided in two parts, 1226 and 643454, that added together give a triangular number (644680 = T₁₁₃₅).

The spelling of 1226643454 in words is "one billion, two hundred twenty-six million, six hundred forty-three thousand, four hundred fifty-four".