1229723488 has 24 divisors (see below), whose sum is σ = 2766878352. Its totient is φ = 527024256.

The previous prime is 1229723459. The next prime is 1229723507. The reversal of 1229723488 is 8843279221.

It is a super-2 number, since 2×1229723488² = 3024439713877772288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744695 + ... + 2745142.

It is an arithmetic number, because the mean of its divisors is an integer number (115286598).

Almost surely, 2^1229723488 is an apocalyptic number.

It is an amenable number.

1229723488 is an abundant number, since it is smaller than the sum of its proper divisors (1537154864).

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

1229723488 is an equidigital number, since it uses as much as digits as its factorization.

1229723488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489854 (or 5489846 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 1229723488 is about 35067.4134774722. The cubic root of 1229723488 is about 1071.3609746848.

The spelling of 1229723488 in words is "one billion, two hundred twenty-nine million, seven hundred twenty-three thousand, four hundred eighty-eight".