129474296 has 32 divisors (see below), whose sum is σ = 280151040. Its totient is φ = 54947808.

The previous prime is 129474271. The next prime is 129474313. The reversal of 129474296 is 692474921.

It is a super-3 number, since 3×129474296³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5456 + ... + 16991.

It is an arithmetic number, because the mean of its divisors is an integer number (8754720).

Almost surely, 2^129474296 is an apocalyptic number.

It is an amenable number.

129474296 is an abundant number, since it is smaller than the sum of its proper divisors (150676744).

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

129474296 is a wasteful number, since it uses less digits than its factorization.

129474296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22563 (or 22559 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 129474296 is about 11378.6772517723. The cubic root of 129474296 is about 505.8959307292.

The spelling of 129474296 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, two hundred ninety-six".