401488775 has 12 divisors (see below), whose sum is σ = 501484272. Its totient is φ = 318843840.

The previous prime is 401488751. The next prime is 401488777. The reversal of 401488775 is 577884104.

It is not a de Polignac number, because 401488775 - 2²⁰ = 400440199 is a prime.

It is a super-2 number, since 2×401488775² = 322386472902001250, 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 (401488777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55187 + ... + 62036.

It is an arithmetic number, because the mean of its divisors is an integer number (41790356).

Almost surely, 2^401488775 is an apocalyptic number.

401488775 is a deficient number, since it is larger than the sum of its proper divisors (99995497).

401488775 is a wasteful number, since it uses less digits than its factorization.

401488775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117370 (or 117365 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 401488775 is about 20037.1848072527. The cubic root of 401488775 is about 737.7192836392.

The spelling of 401488775 in words is "four hundred one million, four hundred eighty-eight thousand, seven hundred seventy-five".