29920998 has 16 divisors (see below), whose sum is σ = 59929776. Its totient is φ = 9959040.

The previous prime is 29920997. The next prime is 29921009. The reversal of 29920998 is 89902992.

It is a super-2 number, since 2×29920998² = 1790532242632008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29920993) 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 7 ways as a sum of consecutive naturals, for example, 1290 + ... + 7842.

It is an arithmetic number, because the mean of its divisors is an integer number (3745611).

Almost surely, 2^29920998 is an apocalyptic number.

29920998 is an abundant number, since it is smaller than the sum of its proper divisors (30008778).

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

29920998 is a wasteful number, since it uses less digits than its factorization.

29920998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 29920998 is about 5470.0089579451. The cubic root of 29920998 is about 310.4502579527.

The spelling of 29920998 in words is "twenty-nine million, nine hundred twenty thousand, nine hundred ninety-eight".