2390427664 has 45 divisors (see below), whose sum is σ = 4926770077. Its totient is φ = 1123342592.

The previous prime is 2390427659. The next prime is 2390427671. The reversal of 2390427664 is 4667240932.

The square root of 2390427664 is 48892.

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., 1861059600 + 529368064 = 43140^2 + 23008^2 .

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 2390427664.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3324297 + ... + 3325015.

Almost surely, 2^2390427664 is an apocalyptic number.

2390427664 is the 48892-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2390427664

2390427664 is an abundant number, since it is smaller than the sum of its proper divisors (2536342413).

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

2390427664 is an frugal number, since it uses more digits than its factorization.

2390427664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The cubic root of 2390427664 is about 1337.0835180855.

The spelling of 2390427664 in words is "two billion, three hundred ninety million, four hundred twenty-seven thousand, six hundred sixty-four".