402244768850 has 12 divisors (see below), whose sum is σ = 748175270154. Its totient is φ = 160897907520.

The previous prime is 402244768837. The next prime is 402244768853. The reversal of 402244768850 is 58867442204.

It can be written as a sum of positive squares in 3 ways, for example, as 208608687169 + 193636081681 = 456737^2 + 440041^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 8044895377 = 402244768850 / (4 + 0 + 2 + 2 + 4 + 4 + 7 + 6 + 8 + 8 + 5 + 0).

It is not an unprimeable number, because it can be changed into a prime (402244768853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4022447639 + ... + 4022447738.

Almost surely, 2^402244768850 is an apocalyptic number.

402244768850 is a deficient number, since it is larger than the sum of its proper divisors (345930501304).

402244768850 is a wasteful number, since it uses less digits than its factorization.

402244768850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044895389 (or 8044895384 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 50.

The spelling of 402244768850 in words is "four hundred two billion, two hundred forty-four million, seven hundred sixty-eight thousand, eight hundred fifty".