401155323445492 has 48 divisors (see below), whose sum is σ = 875249514542592. Its totient is φ = 156294007555680.

The previous prime is 401155323445453. The next prime is 401155323445493. The reversal of 401155323445492 is 294544323551104.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401155323445493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332272443 + ... + 333477565.

It is an arithmetic number, because the mean of its divisors is an integer number (18234364886304).

Almost surely, 2^{401155323445492} is an apocalyptic number.

It is an amenable number.

401155323445492 is an abundant number, since it is smaller than the sum of its proper divisors (474094191097100).

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

401155323445492 is a wasteful number, since it uses less digits than its factorization.

401155323445492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285908 (or 2285906 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 52.

Adding to 401155323445492 its reverse (294544323551104), we get a palindrome (695699646996596).

The spelling of 401155323445492 in words is "four hundred one trillion, one hundred fifty-five billion, three hundred twenty-three million, four hundred forty-five thousand, four hundred ninety-two".