401440475 has 48 divisors (see below), whose sum is σ = 536870400. Its totient is φ = 297198720.

The previous prime is 401440469. The next prime is 401440517. The reversal of 401440475 is 574044104.

It is a happy number.

It is not a de Polignac number, because 401440475 - 2⁶ = 401440411 is a prime.

It is a super-2 number, since 2×401440475² = 322308909936451250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2462744 + ... + 2462906.

It is an arithmetic number, because the mean of its divisors is an integer number (11184800).

Almost surely, 2^401440475 is an apocalyptic number.

401440475 is a deficient number, since it is larger than the sum of its proper divisors (135429925).

401440475 is a wasteful number, since it uses less digits than its factorization.

401440475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 401440475 is about 20035.9795118681. The cubic root of 401440475 is about 737.6896993581.

Adding to 401440475 its reverse (574044104), we get a palindrome (975484579).

The spelling of 401440475 in words is "four hundred one million, four hundred forty thousand, four hundred seventy-five".