2390638780 has 48 divisors (see below), whose sum is σ = 5361027840. Its totient is φ = 893491200.

The previous prime is 2390638771. The next prime is 2390638801. The reversal of 2390638780 is 878360932.

2390638780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2390638780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48501 + ... + 84460.

It is an arithmetic number, because the mean of its divisors is an integer number (111688080).

Almost surely, 2^2390638780 is an apocalyptic number.

2390638780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2390638780 is an abundant number, since it is smaller than the sum of its proper divisors (2970389060).

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

2390638780 is a wasteful number, since it uses less digits than its factorization.

2390638780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133030 (or 133028 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2390638780 is about 48894.1589558507. The cubic root of 2390638780 is about 1337.1228794403.

The spelling of 2390638780 in words is "two billion, three hundred ninety million, six hundred thirty-eight thousand, seven hundred eighty".