2698784340 has 96 divisors (see below), whose sum is σ = 9144140544. Its totient is φ = 580577280.

The previous prime is 2698784303. The next prime is 2698784381. The reversal of 2698784340 is 434878962.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181851 + ... + 196130.

It is an arithmetic number, because the mean of its divisors is an integer number (95251464).

Almost surely, 2^2698784340 is an apocalyptic number.

2698784340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2698784340 is an abundant number, since it is smaller than the sum of its proper divisors (6445356204).

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

2698784340 is a wasteful number, since it uses less digits than its factorization.

2698784340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378017 (or 378015 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The square root of 2698784340 is about 51949.8252162604. The cubic root of 2698784340 is about 1392.2676337526.

The spelling of 2698784340 in words is "two billion, six hundred ninety-eight million, seven hundred eighty-four thousand, three hundred forty".