29129994 has 12 divisors (see below), whose sum is σ = 63115026. Its totient is φ = 9709992.

The previous prime is 29129981. The next prime is 29129999. The reversal of 29129994 is 49992192.

It can be written as a sum of positive squares in only one way, i.e., 28998225 + 131769 = 5385^2 + 363^2 .

It is not an unprimeable number, because it can be changed into a prime (29129999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 809149 + ... + 809184.

Almost surely, 2^29129994 is an apocalyptic number.

29129994 is an abundant number, since it is smaller than the sum of its proper divisors (33985032).

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

29129994 is a wasteful number, since it uses less digits than its factorization.

29129994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618341 (or 1618338 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 29129994 is about 5397.2209515639. The cubic root of 29129994 is about 307.6900589868.

The spelling of 29129994 in words is "twenty-nine million, one hundred twenty-nine thousand, nine hundred ninety-four".