2667540 has 48 divisors (see below), whose sum is σ = 7797888. Its totient is φ = 680064.

The previous prime is 2667503. The next prime is 2667569. The reversal of 2667540 is 457662.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2667498 and 2667507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (162456).

2^2667540 is an apocalyptic number.

2667540 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 2667540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3898944).

2667540 is an abundant number, since it is smaller than the sum of its proper divisors (5130348).

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

2667540 is a wasteful number, since it uses less digits than its factorization.

2667540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2667540 is about 1633.2605425957. The cubic root of 2667540 is about 138.6873916056.

The spelling of 2667540 in words is "two million, six hundred sixty-seven thousand, five hundred forty".