401324133 has 32 divisors (see below), whose sum is σ = 622144512. Its totient is φ = 225388800.

The previous prime is 401324123. The next prime is 401324141. The reversal of 401324133 is 331423104.

It is not a de Polignac number, because 401324133 - 2¹⁶ = 401258597 is a prime.

It is a super-2 number, since 2×401324133² = 322122119456403378, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401324123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310218 + ... + 311508.

It is an arithmetic number, because the mean of its divisors is an integer number (19442016).

Almost surely, 2^401324133 is an apocalyptic number.

It is an amenable number.

401324133 is a deficient number, since it is larger than the sum of its proper divisors (220820379).

401324133 is a wasteful number, since it uses less digits than its factorization.

401324133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 401324133 is about 20033.0759744978. The cubic root of 401324133 is about 737.6184288605.

Adding to 401324133 its reverse (331423104), we get a palindrome (732747237).

The spelling of 401324133 in words is "four hundred one million, three hundred twenty-four thousand, one hundred thirty-three".