401481477 has 6 divisors (see below), whose sum is σ = 579917702. Its totient is φ = 267654312.

The previous prime is 401481467. The next prime is 401481511. The reversal of 401481477 is 774184104.

401481477 is a `hidden beast` number, since 40 + 148 + 1 + 477 = 666.

It can be written as a sum of positive squares in only one way, i.e., 282038436 + 119443041 = 16794^2 + 10929^2 .

It is not a de Polignac number, because 401481477 - 2²² = 397287173 is a prime.

It is a super-2 number, since 2×401481477² = 322374752748203058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401481467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22304518 + ... + 22304535.

Almost surely, 2^401481477 is an apocalyptic number.

It is an amenable number.

401481477 is a deficient number, since it is larger than the sum of its proper divisors (178436225).

401481477 is a wasteful number, since it uses less digits than its factorization.

401481477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44609059 (or 44609056 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 401481477 is about 20037.0026950140. The cubic root of 401481477 is about 737.7148136862.

It can be divided in two parts, 4014 and 81477, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 401481477 in words is "four hundred one million, four hundred eighty-one thousand, four hundred seventy-seven".