29220990 has 16 divisors (see below), whose sum is σ = 70130448. Its totient is φ = 7792256.

The previous prime is 29220937. The next prime is 29221019. The reversal of 29220990 is 9902292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486987 + ... + 487046.

It is an arithmetic number, because the mean of its divisors is an integer number (4383153).

Almost surely, 2^29220990 is an apocalyptic number.

29220990 is an abundant number, since it is smaller than the sum of its proper divisors (40909458).

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

29220990 is a wasteful number, since it uses less digits than its factorization.

29220990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974043.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 29220990 is about 5405.6442724249. The cubic root of 29220990 is about 308.0101123908.

The spelling of 29220990 in words is "twenty-nine million, two hundred twenty thousand, nine hundred ninety".