13229072028 has 36 divisors (see below), whose sum is σ = 33451709928. Its totient is φ = 4408166880.

The previous prime is 13229072023. The next prime is 13229072033. The reversal of 13229072028 is 82027092231.

It is an interprime number because it is at equal distance from previous prime (13229072023) and next prime (13229072033).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13229071983 and 13229072001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13229072023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44658 + ... + 168678.

Almost surely, 2^13229072028 is an apocalyptic number.

13229072028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13229072028 is an abundant number, since it is smaller than the sum of its proper divisors (20222637900).

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

13229072028 is a wasteful number, since it uses less digits than its factorization.

13229072028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126994 (or 126989 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 13229072028 in words is "thirteen billion, two hundred twenty-nine million, seventy-two thousand, twenty-eight".