402143552 has 14 divisors (see below), whose sum is σ = 798003738. Its totient is φ = 201071744.

The previous prime is 402143527. The next prime is 402143593. The reversal of 402143552 is 255341204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 260628736 + 141514816 = 16144^2 + 11896^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141683 + ... + 3141810.

It is an arithmetic number, because the mean of its divisors is an integer number (57000267).

Almost surely, 2^402143552 is an apocalyptic number.

It is an amenable number.

402143552 is a deficient number, since it is larger than the sum of its proper divisors (395860186).

402143552 is an equidigital number, since it uses as much as digits as its factorization.

402143552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283505 (or 6283495 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 402143552 is about 20053.5171977387. The cubic root of 402143552 is about 738.1201078499.

Adding to 402143552 its reverse (255341204), we get a palindrome (657484756).

The spelling of 402143552 in words is "four hundred two million, one hundred forty-three thousand, five hundred fifty-two".