1208400822 has 32 divisors (see below), whose sum is σ = 2688681600. Its totient is φ = 402298344.

The previous prime is 1208400803. The next prime is 1208400833. The reversal of 1208400822 is 2280048021.

It is a super-2 number, since 2×1208400822² = 2920465093220551368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31129 + ... + 58187.

It is an arithmetic number, because the mean of its divisors is an integer number (84021300).

Almost surely, 2^1208400822 is an apocalyptic number.

1208400822 is an abundant number, since it is smaller than the sum of its proper divisors (1480280778).

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

1208400822 is a wasteful number, since it uses less digits than its factorization.

1208400822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27897 (or 27891 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 1208400822 is about 34762.0600943040. The cubic root of 1208400822 is about 1065.1325841681.

Adding to 1208400822 its reverse (2280048021), we get a palindrome (3488448843).

The spelling of 1208400822 in words is "one billion, two hundred eight million, four hundred thousand, eight hundred twenty-two".