398790129 has 8 divisors (see below), whose sum is σ = 531900640. Its totient is φ = 265769856.

The previous prime is 398790109. The next prime is 398790137. The reversal of 398790129 is 921097893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 398790129 - 2⁸ = 398789873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398790109) 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, 11467 + ... + 30480.

It is an arithmetic number, because the mean of its divisors is an integer number (66487580).

Almost surely, 2^398790129 is an apocalyptic number.

It is an amenable number.

398790129 is a deficient number, since it is larger than the sum of its proper divisors (133110511).

398790129 is a wasteful number, since it uses less digits than its factorization.

398790129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45119.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 398790129 is about 19969.7303186598. The cubic root of 398790129 is about 736.0626823436.

The spelling of 398790129 in words is "three hundred ninety-eight million, seven hundred ninety thousand, one hundred twenty-nine".