2782408280 has 32 divisors (see below), whose sum is σ = 6263686800. Its totient is φ = 1112382336.

The previous prime is 2782408271. The next prime is 2782408283. The reversal of 2782408280 is 828042872.

It is a super-2 number, since 2×2782408280² = 15483591673225116800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782408283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64019 + ... + 98301.

Almost surely, 2^2782408280 is an apocalyptic number.

2782408280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2782408280 is an abundant number, since it is smaller than the sum of its proper divisors (3481278520).

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

2782408280 is a wasteful number, since it uses less digits than its factorization.

2782408280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36323 (or 36319 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 41.

The square root of 2782408280 is about 52748.5381787970. The cubic root of 2782408280 is about 1406.5017785758.

The spelling of 2782408280 in words is "two billion, seven hundred eighty-two million, four hundred eight thousand, two hundred eighty".