401563089 has 14 divisors (see below), whose sum is σ = 602070306. Its totient is φ = 267708240.

The previous prime is 401563079. The next prime is 401563091. The reversal of 401563089 is 980365104.

401563089 is a `hidden beast` number, since 4 + 0 + 15 + 630 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 361304064 + 40259025 = 19008^2 + 6345^2 .

It is not a de Polignac number, because 401563089 - 2⁴ = 401563073 is a prime.

It is a super-2 number, since 2×401563089² = 322505828894443842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401563079) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 274692 + ... + 276149.

Almost surely, 2^401563089 is an apocalyptic number.

It is an amenable number.

401563089 is a deficient number, since it is larger than the sum of its proper divisors (200507217).

401563089 is an frugal number, since it uses more digits than its factorization.

401563089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550859 (or 550844 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 401563089 is about 20039.0391236706. The cubic root of 401563089 is about 737.7647971480.

The spelling of 401563089 in words is "four hundred one million, five hundred sixty-three thousand, eighty-nine".