29028390 has 64 divisors (see below), whose sum is σ = 74096640. Its totient is φ = 7257600.

The previous prime is 29028379. The next prime is 29028479. The reversal of 29028390 is 9382092.

29028390 is a nontrivial binomial coefficient, being equal to C(7620, 2).

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 72190 + ... + 72590.

It is an arithmetic number, because the mean of its divisors is an integer number (1157760).

Almost surely, 2^29028390 is an apocalyptic number.

29028390 is the 7619-th triangular number and also the 3810-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29028390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37048320).

29028390 is an abundant number, since it is smaller than the sum of its proper divisors (45068250).

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

29028390 is a wasteful number, since it uses less digits than its factorization.

29028390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 29028390 is about 5387.8001076506. The cubic root of 29028390 is about 307.3319062782.

It can be divided in two parts, 290 and 28390, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 29028390 in words is "twenty-nine million, twenty-eight thousand, three hundred ninety".