401540843170 has 16 divisors (see below), whose sum is σ = 722919415608. Its totient is φ = 160583915520.

The previous prime is 401540843161. The next prime is 401540843189. The reversal of 401540843170 is 71348045104.

It can be written as a sum of positive squares in 4 ways, for example, as 282959099721 + 118581743449 = 531939^2 + 344357^2 .

It is a super-2 number, since 2×401540843170² (a number of 24 digits) contains 22 as substring.

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, 4000671 + ... + 4099810.

Almost surely, 2^401540843170 is an apocalyptic number.

401540843170 is a deficient number, since it is larger than the sum of its proper divisors (321378572438).

401540843170 is a wasteful number, since it uses less digits than its factorization.

401540843170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8105445.

The product of its (nonzero) digits is 53760, while the sum is 37.

Adding to 401540843170 its reverse (71348045104), we get a palindrome (472888888274).

The spelling of 401540843170 in words is "four hundred one billion, five hundred forty million, eight hundred forty-three thousand, one hundred seventy".