1204773640 has 32 divisors (see below), whose sum is σ = 3097990080. Its totient is φ = 413065152.

The previous prime is 1204773637. The next prime is 1204773673. The reversal of 1204773640 is 463774021.

It is a junction number, because it is equal to n+sod(n) for n = 1204773596 and 1204773605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151102 + ... + 2151661.

It is an arithmetic number, because the mean of its divisors is an integer number (96812190).

Almost surely, 2^1204773640 is an apocalyptic number.

1204773640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204773640 is an abundant number, since it is smaller than the sum of its proper divisors (1893216440).

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

1204773640 is a wasteful number, since it uses less digits than its factorization.

1204773640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302781 (or 4302777 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 1204773640 is about 34709.8493226346. The cubic root of 1204773640 is about 1064.0658018927.

The spelling of 1204773640 in words is "one billion, two hundred four million, seven hundred seventy-three thousand, six hundred forty".