401118557 has 12 divisors (see below), whose sum is σ = 491166720. Its totient is φ = 325719576.

The previous prime is 401118533. The next prime is 401118559. The reversal of 401118557 is 755811104.

It is not a de Polignac number, because 401118557 - 2⁸ = 401118301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401118559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214493 + ... + 216354.

It is an arithmetic number, because the mean of its divisors is an integer number (40930560).

Almost surely, 2^401118557 is an apocalyptic number.

It is an amenable number.

401118557 is a deficient number, since it is larger than the sum of its proper divisors (90048163).

401118557 is a wasteful number, since it uses less digits than its factorization.

401118557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430880 (or 430873 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 401118557 is about 20027.9444027589. The cubic root of 401118557 is about 737.4924604036.

The spelling of 401118557 in words is "four hundred one million, one hundred eighteen thousand, five hundred fifty-seven".