842826280 has 16 divisors (see below), whose sum is σ = 1896359220. Its totient is φ = 337130496.

The previous prime is 842826277. The next prime is 842826317. The reversal of 842826280 is 82628248.

It can be written as a sum of positive squares in 2 ways, for example, as 728892004 + 113934276 = 26998^2 + 10674^2 .

It is a super-2 number, since 2×842826280² = 1420712276517276800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 21070657 = 842826280 / (8 + 4 + 2 + 8 + 2 + 6 + 2 + 8 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10535289 + ... + 10535368.

Almost surely, 2^842826280 is an apocalyptic number.

It is an amenable number.

842826280 is an abundant number, since it is smaller than the sum of its proper divisors (1053532940).

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

842826280 is a wasteful number, since it uses less digits than its factorization.

842826280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070668 (or 21070664 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 842826280 is about 29031.4705104650. The cubic root of 842826280 is about 944.5958276471.

The spelling of 842826280 in words is "eight hundred forty-two million, eight hundred twenty-six thousand, two hundred eighty".