402144340094 has 16 divisors (see below), whose sum is σ = 690349132800. Its totient is φ = 172107865464.

The previous prime is 402144340093. The next prime is 402144340097. The reversal of 402144340094 is 490043441204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144340093) 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, 19965314 + ... + 19985445.

It is an arithmetic number, because the mean of its divisors is an integer number (43146820800).

Almost surely, 2^402144340094 is an apocalyptic number.

402144340094 is a deficient number, since it is larger than the sum of its proper divisors (288204792706).

402144340094 is a wasteful number, since it uses less digits than its factorization.

402144340094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39951487.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 402144340094 its reverse (490043441204), we get a palindrome (892187781298).

The spelling of 402144340094 in words is "four hundred two billion, one hundred forty-four million, three hundred forty thousand, ninety-four".