402030433430144 has 64 divisors (see below), whose sum is σ = 817967294040960. Its totient is φ = 196736748539904.

The previous prime is 402030433430107. The next prime is 402030433430179. The reversal of 402030433430144 is 441034334030204.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290318344 + ... + 1290629880.

It is an arithmetic number, because the mean of its divisors is an integer number (12780738969390).

Almost surely, 2^{402030433430144} is an apocalyptic number.

It is an amenable number.

402030433430144 is an abundant number, since it is smaller than the sum of its proper divisors (415936860610816).

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

402030433430144 is a wasteful number, since it uses less digits than its factorization.

402030433430144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526105 (or 526093 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 402030433430144 its reverse (441034334030204), we get a palindrome (843064767460348).

The spelling of 402030433430144 in words is "four hundred two trillion, thirty billion, four hundred thirty-three million, four hundred thirty thousand, one hundred forty-four".