29945490 has 32 divisors (see below), whose sum is σ = 72588096. Its totient is φ = 7905600.

The previous prime is 29945467. The next prime is 29945497. The reversal of 29945490 is 9454992.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29945497) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1912 + ... + 7971.

It is an arithmetic number, because the mean of its divisors is an integer number (2268378).

Almost surely, 2^29945490 is an apocalyptic number.

29945490 is an abundant number, since it is smaller than the sum of its proper divisors (42642606).

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

29945490 is a wasteful number, since it uses less digits than its factorization.

29945490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 29945490 is about 5472.2472531858. The cubic root of 29945490 is about 310.5349417815.

The spelling of 29945490 in words is "twenty-nine million, nine hundred forty-five thousand, four hundred ninety".