398740411 has 4 divisors (see below), whose sum is σ = 400764672. Its totient is φ = 396716152.

The previous prime is 398740399. The next prime is 398740417. The reversal of 398740411 is 114047893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398740411 - 2⁷ = 398740283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398740417) 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 3 ways as a sum of consecutive naturals, for example, 1011835 + ... + 1012228.

It is an arithmetic number, because the mean of its divisors is an integer number (100191168).

Almost surely, 2^398740411 is an apocalyptic number.

398740411 is a deficient number, since it is larger than the sum of its proper divisors (2024261).

398740411 is a wasteful number, since it uses less digits than its factorization.

398740411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024260.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 398740411 is about 19968.4854458219. The cubic root of 398740411 is about 736.0320922473.

The spelling of 398740411 in words is "three hundred ninety-eight million, seven hundred forty thousand, four hundred eleven".