29361990 has 64 divisors (see below), whose sum is σ = 81492480. Its totient is φ = 6631680.

The previous prime is 29361989. The next prime is 29362051. The reversal of 29361990 is 9916392.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 17905 + ... + 19475.

It is an arithmetic number, because the mean of its divisors is an integer number (1273320).

Almost surely, 2^29361990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29361990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40746240).

29361990 is an abundant number, since it is smaller than the sum of its proper divisors (52130490).

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

29361990 is a wasteful number, since it uses less digits than its factorization.

29361990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 29361990 is about 5418.6705011469. The cubic root of 29361990 is about 308.5047312611.

The spelling of 29361990 in words is "twenty-nine million, three hundred sixty-one thousand, nine hundred ninety".