2689380 has 72 divisors (see below), whose sum is σ = 8316672. Its totient is φ = 703296.

The previous prime is 2689369. The next prime is 2689381. The reversal of 2689380 is 839862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2689381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11949 + ... + 12171.

2^2689380 is an apocalyptic number.

2689380 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 2689380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4158336).

2689380 is an abundant number, since it is smaller than the sum of its proper divisors (5627292).

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

2689380 is a wasteful number, since it uses less digits than its factorization.

2689380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2689380 is about 1639.9329254576. The cubic root of 2689380 is about 139.0648559547.

The spelling of 2689380 in words is "two million, six hundred eighty-nine thousand, three hundred eighty".