402111344 has 10 divisors (see below), whose sum is σ = 779090760. Its totient is φ = 201055664.

The previous prime is 402111299. The next prime is 402111349. The reversal of 402111344 is 443111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402111349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565964 + ... + 12565995.

It is an arithmetic number, because the mean of its divisors is an integer number (77909076).

Almost surely, 2^402111344 is an apocalyptic number.

It is an amenable number.

402111344 is a deficient number, since it is larger than the sum of its proper divisors (376979416).

402111344 is a wasteful number, since it uses less digits than its factorization.

402111344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25131967 (or 25131961 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 402111344 is about 20052.7141305111. The cubic root of 402111344 is about 738.1004017797.

Adding to 402111344 its reverse (443111204), we get a palindrome (845222548).

The spelling of 402111344 in words is "four hundred two million, one hundred eleven thousand, three hundred forty-four".