401662401 has 8 divisors (see below), whose sum is σ = 612057024. Its totient is φ = 229521360.

The previous prime is 401662399. The next prime is 401662433. The reversal of 401662401 is 104266104.

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

It is not a de Polignac number, because 401662401 - 2¹ = 401662399 is a prime.

It is a super-2 number, since 2×401662401² = 322665368754169602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401662201) 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, 9563370 + ... + 9563411.

It is an arithmetic number, because the mean of its divisors is an integer number (76507128).

Almost surely, 2^401662401 is an apocalyptic number.

It is an amenable number.

401662401 is a deficient number, since it is larger than the sum of its proper divisors (210394623).

401662401 is a wasteful number, since it uses less digits than its factorization.

401662401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19126791.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 401662401 is about 20041.5169336056. The cubic root of 401662401 is about 737.8256118828.

The spelling of 401662401 in words is "four hundred one million, six hundred sixty-two thousand, four hundred one".