29922890 has 16 divisors (see below), whose sum is σ = 57029832. Its totient is φ = 11265024.

The previous prime is 29922877. The next prime is 29922917. The reversal of 29922890 is 9822992.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26635921 + 3286969 = 5161^2 + 1813^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87839 + ... + 88178.

Almost surely, 2^29922890 is an apocalyptic number.

29922890 is a deficient number, since it is larger than the sum of its proper divisors (27106942).

29922890 is a wasteful number, since it uses less digits than its factorization.

29922890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176041.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 29922890 is about 5470.1818982553. The cubic root of 29922890 is about 310.4568014009.

The spelling of 29922890 in words is "twenty-nine million, nine hundred twenty-two thousand, eight hundred ninety".