398027445 has 32 divisors (see below), whose sum is σ = 659128320. Its totient is φ = 204889920.

The previous prime is 398027437. The next prime is 398027453. The reversal of 398027445 is 544720893.

It is an interprime number because it is at equal distance from previous prime (398027437) and next prime (398027453).

It is not a de Polignac number, because 398027445 - 2³ = 398027437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398027397 and 398027406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221842 + ... + 223628.

It is an arithmetic number, because the mean of its divisors is an integer number (20597760).

Almost surely, 2^398027445 is an apocalyptic number.

It is an amenable number.

398027445 is a deficient number, since it is larger than the sum of its proper divisors (261100875).

398027445 is a wasteful number, since it uses less digits than its factorization.

398027445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 398027445 is about 19950.6251781742. The cubic root of 398027445 is about 735.5931442319.

The spelling of 398027445 in words is "three hundred ninety-eight million, twenty-seven thousand, four hundred forty-five".