2999680 has 64 divisors (see below), whose sum is σ = 7405200. Its totient is φ = 1161216.

The previous prime is 2999677. The next prime is 2999693. The reversal of 2999680 is 869992.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 27466 + ... + 27574.

2^2999680 is an apocalyptic number.

2999680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2999680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3702600).

2999680 is an abundant number, since it is smaller than the sum of its proper divisors (4405520).

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

2999680 is a wasteful number, since it uses less digits than its factorization.

2999680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 2999680 is about 1731.9584290623. The cubic root of 2999680 is about 144.2198288499.

The spelling of 2999680 in words is "two million, nine hundred ninety-nine thousand, six hundred eighty".