129448284 has 24 divisors (see below), whose sum is σ = 345195648. Its totient is φ = 36985200.

The previous prime is 129448259. The next prime is 129448309. The reversal of 129448284 is 482844921.

It is an interprime number because it is at equal distance from previous prime (129448259) and next prime (129448309).

It is a Harshad number since it is a multiple of its sum of digits (42).

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 7 ways as a sum of consecutive naturals, for example, 770442 + ... + 770609.

It is an arithmetic number, because the mean of its divisors is an integer number (14383152).

Almost surely, 2^129448284 is an apocalyptic number.

129448284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129448284 is an abundant number, since it is smaller than the sum of its proper divisors (215747364).

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

129448284 is a wasteful number, since it uses less digits than its factorization.

129448284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541065 (or 1541063 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 129448284 is about 11377.5341792499. The cubic root of 129448284 is about 505.8620494964.

The spelling of 129448284 in words is "one hundred twenty-nine million, four hundred forty-eight thousand, two hundred eighty-four".