842049512 has 8 divisors (see below), whose sum is σ = 1578842850. Its totient is φ = 421024752.

The previous prime is 842049503. The next prime is 842049541. The reversal of 842049512 is 215940248.

It can be written as a sum of positive squares in only one way, i.e., 739513636 + 102535876 = 27194^2 + 10126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52628087 + ... + 52628102.

Almost surely, 2^842049512 is an apocalyptic number.

It is an amenable number.

842049512 is a deficient number, since it is larger than the sum of its proper divisors (736793338).

842049512 is a wasteful number, since it uses less digits than its factorization.

842049512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105256195 (or 105256191 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 842049512 is about 29018.0893926530. The cubic root of 842049512 is about 944.3055514053.

The spelling of 842049512 in words is "eight hundred forty-two million, forty-nine thousand, five hundred twelve".