129340590 has 32 divisors (see below), whose sum is σ = 328678560. Its totient is φ = 32461824.

The previous prime is 129340583. The next prime is 129340613. The reversal of 129340590 is 95043921.

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, 126295 + ... + 127314.

It is an arithmetic number, because the mean of its divisors is an integer number (10271205).

Almost surely, 2^129340590 is an apocalyptic number.

129340590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129340590 is an abundant number, since it is smaller than the sum of its proper divisors (199337970).

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

129340590 is a wasteful number, since it uses less digits than its factorization.

129340590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253636.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 129340590 is about 11372.8004466798. The cubic root of 129340590 is about 505.7217272494.

The spelling of 129340590 in words is "one hundred twenty-nine million, three hundred forty thousand, five hundred ninety".