842445700 has 18 divisors (see below), whose sum is σ = 1828107386. Its totient is φ = 336978240.

The previous prime is 842445683. The next prime is 842445749. The reversal of 842445700 is 7544248.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 111175936 + 731269764 = 10544^2 + 27042^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4212129 + ... + 4212328.

Almost surely, 2^842445700 is an apocalyptic number.

It is an amenable number.

842445700 is an abundant number, since it is smaller than the sum of its proper divisors (985661686).

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

842445700 is a wasteful number, since it uses less digits than its factorization.

842445700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8424471 (or 8424464 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 842445700 is about 29024.9151592214. The cubic root of 842445700 is about 944.4536281562.

Adding to 842445700 its reverse (7544248), we get a palindrome (849989948).

The spelling of 842445700 in words is "eight hundred forty-two million, four hundred forty-five thousand, seven hundred".