1228969454 has 16 divisors (see below), whose sum is σ = 1870847280. Its totient is φ = 605373120.

The previous prime is 1228969421. The next prime is 1228969513. The reversal of 1228969454 is 4549698221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137432 + ... + 146100.

It is an arithmetic number, because the mean of its divisors is an integer number (116927955).

Almost surely, 2^1228969454 is an apocalyptic number.

1228969454 is a deficient number, since it is larger than the sum of its proper divisors (641877826).

1228969454 is an equidigital number, since it uses as much as digits as its factorization.

1228969454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715.

The product of its digits is 1244160, while the sum is 50.

The square root of 1228969454 is about 35056.6606224837. The cubic root of 1228969454 is about 1071.1419531510.

The spelling of 1228969454 in words is "one billion, two hundred twenty-eight million, nine hundred sixty-nine thousand, four hundred fifty-four".