401700399 has 8 divisors (see below), whose sum is σ = 546996480. Its totient is φ = 262102296.

The previous prime is 401700391. The next prime is 401700401. The reversal of 401700399 is 993007104.

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

It is not a de Polignac number, because 401700399 - 2³ = 401700391 is a prime.

It is a super-2 number, since 2×401700399² = 322726421113518402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401700391) 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, 1424329 + ... + 1424610.

It is an arithmetic number, because the mean of its divisors is an integer number (68374560).

Almost surely, 2^401700399 is an apocalyptic number.

401700399 is a deficient number, since it is larger than the sum of its proper divisors (145296081).

401700399 is a wasteful number, since it uses less digits than its factorization.

401700399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848989.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 401700399 is about 20042.4648933209. The cubic root of 401700399 is about 737.8488777013.

The spelling of 401700399 in words is "four hundred one million, seven hundred thousand, three hundred ninety-nine".