1229974680 has 384 divisors, whose sum is σ = 4412620800. Its totient is φ = 273208320.

The previous prime is 1229974679. The next prime is 1229974687. The reversal of 1229974680 is 864799221.

1229974680 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1229974680² = 3025675426882204800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229974687) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9684777 + ... + 9684903.

It is an arithmetic number, because the mean of its divisors is an integer number (11491200).

Almost surely, 2^1229974680 is an apocalyptic number.

1229974680 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 1229974680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2206310400).

1229974680 is an abundant number, since it is smaller than the sum of its proper divisors (3182646120).

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

1229974680 is a wasteful number, since it uses less digits than its factorization.

1229974680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1229974680 is about 35070.9948532972. The cubic root of 1229974680 is about 1071.4339176368.

The spelling of 1229974680 in words is "one billion, two hundred twenty-nine million, nine hundred seventy-four thousand, six hundred eighty".