2420776782 has 24 divisors (see below), whose sum is σ = 5245924320. Its totient is φ = 806785920.

The previous prime is 2420776781. The next prime is 2420776789. The reversal of 2420776782 is 2876770242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420776781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185182 + ... + 197822.

It is an arithmetic number, because the mean of its divisors is an integer number (218580180).

Almost surely, 2^2420776782 is an apocalyptic number.

2420776782 is an abundant number, since it is smaller than the sum of its proper divisors (2825147538).

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

2420776782 is a wasteful number, since it uses less digits than its factorization.

2420776782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23288 (or 23285 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 2420776782 is about 49201.3900413393. The cubic root of 2420776782 is about 1342.7183220149.

The spelling of 2420776782 in words is "two billion, four hundred twenty million, seven hundred seventy-six thousand, seven hundred eighty-two".