402240400211552 has 24 divisors (see below), whose sum is σ = 905040900476496. Its totient is φ = 172388742947712.

The previous prime is 402240400211509. The next prime is 402240400211557. The reversal of 402240400211552 is 255112004042204.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402240400211557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897858035963 + ... + 897858036410.

It is an arithmetic number, because the mean of its divisors is an integer number (37710037519854).

Almost surely, 2^{402240400211552} is an apocalyptic number.

It is an amenable number.

402240400211552 is an abundant number, since it is smaller than the sum of its proper divisors (502800500264944).

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

402240400211552 is a wasteful number, since it uses less digits than its factorization.

402240400211552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795716072390 (or 1795716072382 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 402240400211552 its reverse (255112004042204), we get a palindrome (657352404253756).

The spelling of 402240400211552 in words is "four hundred two trillion, two hundred forty billion, four hundred million, two hundred eleven thousand, five hundred fifty-two".