2698724720 has 40 divisors (see below), whose sum is σ = 6420462576. Its totient is φ = 1054384128.

The previous prime is 2698724719. The next prime is 2698724753. The reversal of 2698724720 is 274278962.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2698724720² = 14566230228678156800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388817 + ... + 395696.

Almost surely, 2^2698724720 is an apocalyptic number.

2698724720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2698724720 is an abundant number, since it is smaller than the sum of its proper divisors (3721737856).

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

2698724720 is a wasteful number, since it uses less digits than its factorization.

2698724720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784569 (or 784563 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 2698724720 is about 51949.2513901789. The cubic root of 2698724720 is about 1392.2573812837.

The spelling of 2698724720 in words is "two billion, six hundred ninety-eight million, seven hundred twenty-four thousand, seven hundred twenty".