1204378388 has 12 divisors (see below), whose sum is σ = 2142214452. Its totient is φ = 592317120.

The previous prime is 1204378369. The next prime is 1204378391. The reversal of 1204378388 is 8838734021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 680792464 + 523585924 = 26092^2 + 22882^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467745 + ... + 2468232.

It is an arithmetic number, because the mean of its divisors is an integer number (178517871).

Almost surely, 2^1204378388 is an apocalyptic number.

It is an amenable number.

1204378388 is a deficient number, since it is larger than the sum of its proper divisors (937836064).

1204378388 is a wasteful number, since it uses less digits than its factorization.

1204378388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936042 (or 4936040 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 1204378388 is about 34704.1551979010. The cubic root of 1204378388 is about 1063.9494259132.

The spelling of 1204378388 in words is "one billion, two hundred four million, three hundred seventy-eight thousand, three hundred eighty-eight".