401305233 has 8 divisors (see below), whose sum is σ = 611512768. Its totient is φ = 229317264.

The previous prime is 401305217. The next prime is 401305279. The reversal of 401305233 is 332503104.

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

It is not a de Polignac number, because 401305233 - 2⁴ = 401305217 is a prime.

It is a super-2 number, since 2×401305233² = 322091780066368578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19109773 = 401305233 / (4 + 0 + 1 + 3 + 0 + 5 + 2 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401305033) 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, 9554866 + ... + 9554907.

It is an arithmetic number, because the mean of its divisors is an integer number (76439096).

Almost surely, 2^401305233 is an apocalyptic number.

It is an amenable number.

401305233 is a deficient number, since it is larger than the sum of its proper divisors (210207535).

401305233 is a wasteful number, since it uses less digits than its factorization.

401305233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109783.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 401305233 is about 20032.6042490736. The cubic root of 401305233 is about 737.6068495193.

Adding to 401305233 its reverse (332503104), we get a palindrome (733808337).

The spelling of 401305233 in words is "four hundred one million, three hundred five thousand, two hundred thirty-three".