1229788471 has 16 divisors (see below), whose sum is σ = 1342195200. Its totient is φ = 1122333408.

The previous prime is 1229788459. The next prime is 1229788493. The reversal of 1229788471 is 1748879221.

It is not a de Polignac number, because 1229788471 - 2⁹ = 1229787959 is a prime.

It is a super-3 number, since 3×1229788471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229788411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266046 + ... + 270628.

It is an arithmetic number, because the mean of its divisors is an integer number (83887200).

Almost surely, 2^1229788471 is an apocalyptic number.

1229788471 is a deficient number, since it is larger than the sum of its proper divisors (112406729).

1229788471 is a wasteful number, since it uses less digits than its factorization.

1229788471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118.

The product of its digits is 451584, while the sum is 49.

The square root of 1229788471 is about 35068.3400091878. The cubic root of 1229788471 is about 1071.3798458713.

The spelling of 1229788471 in words is "one billion, two hundred twenty-nine million, seven hundred eighty-eight thousand, four hundred seventy-one".