398106149 has 16 divisors (see below), whose sum is σ = 477050880. Its totient is φ = 324822960.

The previous prime is 398106133. The next prime is 398106151. The reversal of 398106149 is 941601893.

It is not a de Polignac number, because 398106149 - 2⁴ = 398106133 is a prime.

It is a super-2 number, since 2×398106149² = 316977011743220402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398106179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28112 + ... + 39830.

It is an arithmetic number, because the mean of its divisors is an integer number (29815680).

Almost surely, 2^398106149 is an apocalyptic number.

It is an amenable number.

398106149 is a deficient number, since it is larger than the sum of its proper divisors (78944731).

398106149 is a wasteful number, since it uses less digits than its factorization.

398106149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11960.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 398106149 is about 19952.5975501938. The cubic root of 398106149 is about 735.6416252333.

The spelling of 398106149 in words is "three hundred ninety-eight million, one hundred six thousand, one hundred forty-nine".