129007404 has 30 divisors (see below), whose sum is σ = 337251684. Its totient is φ = 43002360.

The previous prime is 129007393. The next prime is 129007423. The reversal of 129007404 is 404700921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 198762 + ... + 199409.

Almost surely, 2^129007404 is an apocalyptic number.

It is an amenable number.

129007404 is an abundant number, since it is smaller than the sum of its proper divisors (208244280).

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

129007404 is a wasteful number, since it uses less digits than its factorization.

129007404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398187 (or 398176 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 129007404 is about 11358.1426298493. The cubic root of 129007404 is about 505.2871013941.

The spelling of 129007404 in words is "one hundred twenty-nine million, seven thousand, four hundred four".