1229843454 has 48 divisors (see below), whose sum is σ = 2922179328. Its totient is φ = 343903728.

The previous prime is 1229843449. The next prime is 1229843477. The reversal of 1229843454 is 4543489221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30684 + ... + 58319.

It is an arithmetic number, because the mean of its divisors is an integer number (60878736).

Almost surely, 2^1229843454 is an apocalyptic number.

1229843454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1229843454 is an abundant number, since it is smaller than the sum of its proper divisors (1692335874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229843454 is a wasteful number, since it uses less digits than its factorization.

1229843454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89069 (or 89062 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 1229843454 is about 35069.1239411537. The cubic root of 1229843454 is about 1071.3958125197.

The spelling of 1229843454 in words is "one billion, two hundred twenty-nine million, eight hundred forty-three thousand, four hundred fifty-four".