401804045 has 8 divisors (see below), whose sum is σ = 488770296. Its totient is φ = 317039616.

The previous prime is 401804021. The next prime is 401804069. The reversal of 401804045 is 540408104.

It is an interprime number because it is at equal distance from previous prime (401804021) and next prime (401804069).

It can be written as a sum of positive squares in 4 ways, for example, as 160250281 + 241553764 = 12659^2 + 15542^2 .

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 401804045 - 2²⁰ = 400755469 is a prime.

It is a super-2 number, since 2×401804045² = 322892981156724050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550052 + ... + 550781.

It is an arithmetic number, because the mean of its divisors is an integer number (61096287).

Almost surely, 2^401804045 is an apocalyptic number.

It is an amenable number.

401804045 is a deficient number, since it is larger than the sum of its proper divisors (86966251).

401804045 is a wasteful number, since it uses less digits than its factorization.

401804045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100911.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 401804045 is about 20045.0503865668. The cubic root of 401804045 is about 737.9123317154.

The spelling of 401804045 in words is "four hundred one million, eight hundred four thousand, forty-five".