402240220443 has 12 divisors (see below), whose sum is σ = 581067684288. Its totient is φ = 268135208880.

The previous prime is 402240220397. The next prime is 402240220453. The reversal of 402240220443 is 344022042204.

It is not a de Polignac number, because 402240220443 - 2¹² = 402240216347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402240220453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1975755 + ... + 2169812.

It is an arithmetic number, because the mean of its divisors is an integer number (48422307024).

Almost surely, 2^402240220443 is an apocalyptic number.

402240220443 is a deficient number, since it is larger than the sum of its proper divisors (178827463845).

402240220443 is a wasteful number, since it uses less digits than its factorization.

402240220443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156354 (or 4156351 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 402240220443 its reverse (344022042204), we get a palindrome (746262262647).

The spelling of 402240220443 in words is "four hundred two billion, two hundred forty million, two hundred twenty thousand, four hundred forty-three".