29808990 has 48 divisors (see below), whose sum is σ = 82066608. Its totient is φ = 7481088.

The previous prime is 29808971. The next prime is 29809001. The reversal of 29808990 is 9980892.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8212 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (1709721).

Almost surely, 2^29808990 is an apocalyptic number.

29808990 is an abundant number, since it is smaller than the sum of its proper divisors (52257618).

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

29808990 is a wasteful number, since it uses less digits than its factorization.

29808990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19513 (or 19510 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 29808990 is about 5459.7609837794. The cubic root of 29808990 is about 310.0623877211.

The spelling of 29808990 in words is "twenty-nine million, eight hundred eight thousand, nine hundred ninety".