1229397160 has 64 divisors (see below), whose sum is σ = 2978596800. Its totient is φ = 454972416.

The previous prime is 1229397107. The next prime is 1229397181. The reversal of 1229397160 is 617939221.

It is a super-2 number, since 2×1229397160² = 3022834754032131200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24799 + ... + 55441.

It is an arithmetic number, because the mean of its divisors is an integer number (46540575).

Almost surely, 2^1229397160 is an apocalyptic number.

1229397160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229397160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489298400).

1229397160 is an abundant number, since it is smaller than the sum of its proper divisors (1749199640).

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

1229397160 is a wasteful number, since it uses less digits than its factorization.

1229397160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30730 (or 30726 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1229397160 is about 35062.7603020641. The cubic root of 1229397160 is about 1071.2661983611.

The spelling of 1229397160 in words is "one billion, two hundred twenty-nine million, three hundred ninety-seven thousand, one hundred sixty".