29129768 has 8 divisors (see below), whose sum is σ = 54618330. Its totient is φ = 14564880.

The previous prime is 29129759. The next prime is 29129783. The reversal of 29129768 is 86792192.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18645124 + 10484644 = 4318^2 + 3238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820603 + ... + 1820618.

Almost surely, 2^29129768 is an apocalyptic number.

It is an amenable number.

29129768 is a deficient number, since it is larger than the sum of its proper divisors (25488562).

29129768 is a wasteful number, since it uses less digits than its factorization.

29129768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641227 (or 3641223 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 29129768 is about 5397.2000148225. The cubic root of 29129768 is about 307.6892632647.

The spelling of 29129768 in words is "twenty-nine million, one hundred twenty-nine thousand, seven hundred sixty-eight".