129419470 has 16 divisors (see below), whose sum is σ = 246658608. Its totient is φ = 48722560.

The previous prime is 129419449. The next prime is 129419473. The reversal of 129419470 is 74914921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129419473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380476 + ... + 380815.

It is an arithmetic number, because the mean of its divisors is an integer number (15416163).

Almost surely, 2^129419470 is an apocalyptic number.

129419470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129419470 is a deficient number, since it is larger than the sum of its proper divisors (117239138).

129419470 is a wasteful number, since it uses less digits than its factorization.

129419470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761315.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 129419470 is about 11376.2678414320. The cubic root of 129419470 is about 505.8245132946.

The spelling of 129419470 in words is "one hundred twenty-nine million, four hundred nineteen thousand, four hundred seventy".