1240073779396 has 9 divisors (see below), whose sum is σ = 2170133011501. Its totient is φ = 620035776112.

The previous prime is 1240073779379. The next prime is 1240073779421. The reversal of 1240073779396 is 6939773700421.

The square root of 1240073779396 is 1113586.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 215249602500 + 1024824176896 = 463950^2 + 1012336^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240073779396.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1948776 + ... + 2505568.

Almost surely, 2^{1240073779396} is an apocalyptic number.

1240073779396 is the 1113586-th square number.

It is an amenable number.

1240073779396 is a deficient number, since it is larger than the sum of its proper divisors (930059232105).

1240073779396 is an frugal number, since it uses more digits than its factorization.

1240073779396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113590 (or 556795 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 58.

The spelling of 1240073779396 in words is "one trillion, two hundred forty billion, seventy-three million, seven hundred seventy-nine thousand, three hundred ninety-six".