29769728 has 60 divisors (see below), whose sum is σ = 62912640. Its totient is φ = 14057472.

The previous prime is 29769709. The next prime is 29769739. The reversal of 29769728 is 82796792.

It is a happy 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, 376793 + ... + 376871.

It is an arithmetic number, because the mean of its divisors is an integer number (1048544).

Almost surely, 2^29769728 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 29769728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31456320).

29769728 is an abundant number, since it is smaller than the sum of its proper divisors (33142912).

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

29769728 is an frugal number, since it uses more digits than its factorization.

29769728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 104 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 29769728 is about 5456.1642204025. The cubic root of 29769728 is about 309.9261981789.

The spelling of 29769728 in words is "twenty-nine million, seven hundred sixty-nine thousand, seven hundred twenty-eight".