398090029 has 8 divisors (see below), whose sum is σ = 399872000. Its totient is φ = 396312912.

The previous prime is 398089999. The next prime is 398090041. The reversal of 398090029 is 920090893.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 398090029 - 2⁵ = 398089997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398089973 and 398090000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398090089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310612 + ... + 311890.

It is an arithmetic number, because the mean of its divisors is an integer number (49984000).

Almost surely, 2^398090029 is an apocalyptic number.

It is an amenable number.

398090029 is a deficient number, since it is larger than the sum of its proper divisors (1781971).

398090029 is a wasteful number, since it uses less digits than its factorization.

398090029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 398090029 is about 19952.1935886759. The cubic root of 398090029 is about 735.6316959694.

The spelling of 398090029 in words is "three hundred ninety-eight million, ninety thousand, twenty-nine".