29780090 has 32 divisors (see below), whose sum is σ = 57049920. Its totient is φ = 11153664.

The previous prime is 29780053. The next prime is 29780137. The reversal of 29780090 is 9008792.

It is a self number, because there is not a number n which added to its sum of digits gives 29780090.

It is an unprimeable number.

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, 47801 + ... + 48419.

It is an arithmetic number, because the mean of its divisors is an integer number (1782810).

Almost surely, 2^29780090 is an apocalyptic number.

29780090 is a deficient number, since it is larger than the sum of its proper divisors (27269830).

29780090 is a wasteful number, since it uses less digits than its factorization.

29780090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 29780090 is about 5457.1137059805. The cubic root of 29780090 is about 309.9621528544.

The spelling of 29780090 in words is "twenty-nine million, seven hundred eighty thousand, ninety".