402120032441 has 4 divisors (see below), whose sum is σ = 402152676432. Its totient is φ = 402087388452.

The previous prime is 402120032407. The next prime is 402120032491. The reversal of 402120032441 is 144230021204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402120032441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402120032491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16303511 + ... + 16328156.

It is an arithmetic number, because the mean of its divisors is an integer number (100538169108).

Almost surely, 2^402120032441 is an apocalyptic number.

It is an amenable number.

402120032441 is a deficient number, since it is larger than the sum of its proper divisors (32643991).

402120032441 is a wasteful number, since it uses less digits than its factorization.

402120032441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32643990.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 402120032441 its reverse (144230021204), we get a palindrome (546350053645).

The spelling of 402120032441 in words is "four hundred two billion, one hundred twenty million, thirty-two thousand, four hundred forty-one".