29055978 has 96 divisors (see below), whose sum is σ = 77500800. Its totient is φ = 7682688.

The previous prime is 29055973. The next prime is 29055979. The reversal of 29055978 is 87955092.

It is a happy number.

29055978 is a `hidden beast` number, since 2 + 90 + 559 + 7 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29055973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126768 + ... + 126996.

It is an arithmetic number, because the mean of its divisors is an integer number (807300).

Almost surely, 2^29055978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29055978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38750400).

29055978 is an abundant number, since it is smaller than the sum of its proper divisors (48444822).

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

29055978 is a wasteful number, since it uses less digits than its factorization.

29055978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 29055978 is about 5390.3597282556. The cubic root of 29055978 is about 307.4292361457.

The spelling of 29055978 in words is "twenty-nine million, fifty-five thousand, nine hundred seventy-eight".