307290618244 has 9 divisors (see below), whose sum is σ = 537760522117. Its totient is φ = 153644754784.

The previous prime is 307290618233. The next prime is 307290618277. The reversal of 307290618244 is 442816092703.

It is a happy number.

The square root of 307290618244 is 554338.

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., 155502458244 + 151788160000 = 394338^2 + 389600^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 307290618194 and 307290618203.

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, 970092 + ... + 1247260.

Almost surely, 2^307290618244 is an apocalyptic number.

307290618244 is the 554338-th square number.

It is an amenable number.

307290618244 is a deficient number, since it is larger than the sum of its proper divisors (230469903873).

307290618244 is an frugal number, since it uses more digits than its factorization.

307290618244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554342 (or 277171 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 307290618244 in words is "three hundred seven billion, two hundred ninety million, six hundred eighteen thousand, two hundred forty-four".