29491488 has 72 divisors (see below), whose sum is σ = 90329148. Its totient is φ = 9073152.

The previous prime is 29491459. The next prime is 29491499. The reversal of 29491488 is 88419492.

It can be written as a sum of positive squares in 2 ways, for example, as 25280784 + 4210704 = 5028^2 + 2052^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195 + ... + 7682.

Almost surely, 2^29491488 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 29491488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45164574).

29491488 is an abundant number, since it is smaller than the sum of its proper divisors (60837660).

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

29491488 is a wasteful number, since it uses less digits than its factorization.

29491488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906 (or 7895 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 29491488 is about 5430.6065959522. The cubic root of 29491488 is about 308.9576087886.

The spelling of 29491488 in words is "twenty-nine million, four hundred ninety-one thousand, four hundred eighty-eight".