29189988 has 36 divisors (see below), whose sum is σ = 73993920. Its totient is φ = 9702576.

The previous prime is 29189971. The next prime is 29190001. The reversal of 29189988 is 88998192.

It is a happy number.

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

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, 14881 + ... + 16727.

Almost surely, 2^29189988 is an apocalyptic number.

It is an amenable number.

29189988 is an abundant number, since it is smaller than the sum of its proper divisors (44803932).

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

29189988 is a wasteful number, since it uses less digits than its factorization.

29189988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296 (or 2291 counting only the distinct ones).

The product of its digits is 746496, while the sum is 54.

The square root of 29189988 is about 5402.7759531559. The cubic root of 29189988 is about 307.9011461023.

The spelling of 29189988 in words is "twenty-nine million, one hundred eighty-nine thousand, nine hundred eighty-eight".