129490224 has 80 divisors (see below), whose sum is σ = 365690880. Its totient is φ = 39306240.

The previous prime is 129490219. The next prime is 129490237. The reversal of 129490224 is 422094921.

It is a super-2 number, since 2×129490224² = 33535436223140352, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22737 + ... + 27855.

It is an arithmetic number, because the mean of its divisors is an integer number (4571136).

Almost surely, 2^129490224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129490224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182845440).

129490224 is an abundant number, since it is smaller than the sum of its proper divisors (236200656).

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

129490224 is a wasteful number, since it uses less digits than its factorization.

129490224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178 (or 5172 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 129490224 is about 11379.3771358541. The cubic root of 129490224 is about 505.9166750783.

The spelling of 129490224 in words is "one hundred twenty-nine million, four hundred ninety thousand, two hundred twenty-four".