401155243434 has 24 divisors (see below), whose sum is σ = 948185121312. Its totient is φ = 121562194920.

The previous prime is 401155243427. The next prime is 401155243453. The reversal of 401155243434 is 434342551104.

401155243434 is a `hidden beast` number, since 40 + 1 + 1 + 552 + 4 + 34 + 34 = 666.

It is a super-2 number, since 2×401155243434² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1013018094 + ... + 1013018489.

It is an arithmetic number, because the mean of its divisors is an integer number (39507713388).

Almost surely, 2^401155243434 is an apocalyptic number.

401155243434 is an abundant number, since it is smaller than the sum of its proper divisors (547029877878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401155243434 is a wasteful number, since it uses less digits than its factorization.

401155243434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026036602 (or 2026036599 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 401155243434 its reverse (434342551104), we get a palindrome (835497794538).

The spelling of 401155243434 in words is "four hundred one billion, one hundred fifty-five million, two hundred forty-three thousand, four hundred thirty-four".