29974290 has 32 divisors (see below), whose sum is σ = 75067776. Its totient is φ = 7645440.

The previous prime is 29974279. The next prime is 29974291. The reversal of 29974290 is 9247992.

It is a super-2 number, since 2×29974290² = 1796916122008200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29974291) 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, 21031 + ... + 22410.

It is an arithmetic number, because the mean of its divisors is an integer number (2345868).

Almost surely, 2^29974290 is an apocalyptic number.

29974290 is an abundant number, since it is smaller than the sum of its proper divisors (45093486).

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

29974290 is a wasteful number, since it uses less digits than its factorization.

29974290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43474.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 29974290 is about 5474.8780808343. The cubic root of 29974290 is about 310.6344619513.

The spelling of 29974290 in words is "twenty-nine million, nine hundred seventy-four thousand, two hundred ninety".