1229294080 has 160 divisors (see below), whose sum is σ = 3396032640. Its totient is φ = 418037760.

The previous prime is 1229294047. The next prime is 1229294113. The reversal of 1229294080 is 804929221.

It is an interprime number because it is at equal distance from previous prime (1229294047) and next prime (1229294113).

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×1229294080² = 3022327870246092800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3243331 + ... + 3243709.

It is an arithmetic number, because the mean of its divisors is an integer number (21225204).

Almost surely, 2^1229294080 is an apocalyptic number.

1229294080 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 1229294080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698016320).

1229294080 is an abundant number, since it is smaller than the sum of its proper divisors (2166738560).

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

1229294080 is an equidigital number, since it uses as much as digits as its factorization.

1229294080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1229294080 is about 35061.2903356394. The cubic root of 1229294080 is about 1071.2362570723.

The spelling of 1229294080 in words is "one billion, two hundred twenty-nine million, two hundred ninety-four thousand, eighty".