398022911 has 8 divisors (see below), whose sum is σ = 467607504. Its totient is φ = 334005120.

The previous prime is 398022901. The next prime is 398022917. The reversal of 398022911 is 119220893.

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 398022911 - 2⁶ = 398022847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398022917) 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, 1391546 + ... + 1391831.

It is an arithmetic number, because the mean of its divisors is an integer number (58450938).

Almost surely, 2^398022911 is an apocalyptic number.

398022911 is a deficient number, since it is larger than the sum of its proper divisors (69584593).

398022911 is a wasteful number, since it uses less digits than its factorization.

398022911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783401.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 398022911 is about 19950.5115473263. The cubic root of 398022911 is about 735.5903511314.

The spelling of 398022911 in words is "three hundred ninety-eight million, twenty-two thousand, nine hundred eleven".