402244372 has 6 divisors (see below), whose sum is σ = 703927658. Its totient is φ = 201122184.

The previous prime is 402244267. The next prime is 402244373. The reversal of 402244372 is 273442204.

It can be written as a sum of positive squares in only one way, i.e., 360848016 + 41396356 = 18996^2 + 6434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 402244372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402244373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280543 + ... + 50280550.

Almost surely, 2^402244372 is an apocalyptic number.

It is an amenable number.

402244372 is a deficient number, since it is larger than the sum of its proper divisors (301683286).

402244372 is a wasteful number, since it uses less digits than its factorization.

402244372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100561097 (or 100561095 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 402244372 is about 20056.0308136979. The cubic root of 402244372 is about 738.1817865305.

Adding to 402244372 its reverse (273442204), we get a palindrome (675686576).

The spelling of 402244372 in words is "four hundred two million, two hundred forty-four thousand, three hundred seventy-two".