1229023860 has 48 divisors (see below), whose sum is σ = 3590891136. Its totient is φ = 313489792.

The previous prime is 1229023843. The next prime is 1229023877. The reversal of 1229023860 is 683209221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1229023843) and next prime (1229023877).

It is a congruent number.

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, 443919 + ... + 446678.

It is an arithmetic number, because the mean of its divisors is an integer number (74810232).

Almost surely, 2^1229023860 is an apocalyptic number.

1229023860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1229023860 is an abundant number, since it is smaller than the sum of its proper divisors (2361867276).

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

1229023860 is a wasteful number, since it uses less digits than its factorization.

1229023860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890632 (or 890630 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1229023860 is about 35057.4365862651. The cubic root of 1229023860 is about 1071.1577592638.

The spelling of 1229023860 in words is "one billion, two hundred twenty-nine million, twenty-three thousand, eight hundred sixty".