401057089 has 8 divisors (see below), whose sum is σ = 403606760. Its totient is φ = 398514816.

The previous prime is 401057071. The next prime is 401057113. The reversal of 401057089 is 980750104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54464400 + 346592689 = 7380^2 + 18617^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 401057089 - 2¹³ = 401048897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401057389) 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, 138949 + ... + 141805.

It is an arithmetic number, because the mean of its divisors is an integer number (50450845).

Almost surely, 2^401057089 is an apocalyptic number.

It is an amenable number.

401057089 is a deficient number, since it is larger than the sum of its proper divisors (2549671).

401057089 is a wasteful number, since it uses less digits than its factorization.

401057089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 401057089 is about 20026.4097880773. The cubic root of 401057089 is about 737.4547870013.

The spelling of 401057089 in words is "four hundred one million, fifty-seven thousand, eighty-nine".