401543126 has 16 divisors (see below), whose sum is σ = 607392000. Its totient is φ = 199084200.

The previous prime is 401543123. The next prime is 401543167. The reversal of 401543126 is 621345104.

It is a super-2 number, since 2×401543126² = 322473764075703752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401543095 and 401543104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401543123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267125 + ... + 268623.

It is an arithmetic number, because the mean of its divisors is an integer number (37962000).

Almost surely, 2^401543126 is an apocalyptic number.

401543126 is a deficient number, since it is larger than the sum of its proper divisors (205848874).

401543126 is a wasteful number, since it uses less digits than its factorization.

401543126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 401543126 is about 20038.5410147545. The cubic root of 401543126 is about 737.7525713873.

The spelling of 401543126 in words is "four hundred one million, five hundred forty-three thousand, one hundred twenty-six".