129794390 has 32 divisors (see below), whose sum is σ = 258474240. Its totient is φ = 46530400.

The previous prime is 129794389. The next prime is 129794411. The reversal of 129794390 is 93497921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500 + ... + 16119.

It is an arithmetic number, because the mean of its divisors is an integer number (8077320).

Almost surely, 2^129794390 is an apocalyptic number.

129794390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129794390 is a deficient number, since it is larger than the sum of its proper divisors (128679850).

129794390 is a wasteful number, since it uses less digits than its factorization.

129794390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16708.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 129794390 is about 11392.7340880054. The cubic root of 129794390 is about 506.3124895681.

The spelling of 129794390 in words is "one hundred twenty-nine million, seven hundred ninety-four thousand, three hundred ninety".