401554269 has 12 divisors (see below), whose sum is σ = 581582716. Its totient is φ = 266982912.

The previous prime is 401554247. The next prime is 401554289. The reversal of 401554269 is 962455104.

401554269 is a `hidden beast` number, since 40 + 1 + 554 + 2 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 223652025 + 177902244 = 14955^2 + 13338^2 .

It is not a de Polignac number, because 401554269 - 2²¹ = 399457117 is a prime.

It is a super-2 number, since 2×401554269² = 322491661904248722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401554289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56452 + ... + 63165.

Almost surely, 2^401554269 is an apocalyptic number.

It is an amenable number.

401554269 is a deficient number, since it is larger than the sum of its proper divisors (180028447).

401554269 is a wasteful number, since it uses less digits than its factorization.

401554269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119996 (or 119993 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 401554269 is about 20038.8190520300. The cubic root of 401554269 is about 737.7593956447.

The spelling of 401554269 in words is "four hundred one million, five hundred fifty-four thousand, two hundred sixty-nine".