29427889232 has 60 divisors (see below), whose sum is σ = 66368180736. Its totient is φ = 12603810240.

The previous prime is 29427889181. The next prime is 29427889237. The reversal of 29427889232 is 23298872492.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29427889237) 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, 1292507 + ... + 1315077.

Almost surely, 2^29427889232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29427889232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33184090368).

29427889232 is an abundant number, since it is smaller than the sum of its proper divisors (36940291504).

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

29427889232 is a wasteful number, since it uses less digits than its factorization.

29427889232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24256 (or 24243 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The spelling of 29427889232 in words is "twenty-nine billion, four hundred twenty-seven million, eight hundred eighty-nine thousand, two hundred thirty-two".