2630540 has 36 divisors (see below), whose sum is σ = 6077568. Its totient is φ = 955680.

The previous prime is 2630539. The next prime is 2630557. The reversal of 2630540 is 450362.

2630540 = T₃₁ + T₃₂ + ... + T₂₅₀.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1877 + ... + 2963.

2^2630540 is an apocalyptic number.

2630540 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 2630540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3038784).

2630540 is an abundant number, since it is smaller than the sum of its proper divisors (3447028).

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

2630540 is a wasteful number, since it uses less digits than its factorization.

2630540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2630540 is about 1621.8939546099. The cubic root of 2630540 is about 138.0431846924.

The spelling of 2630540 in words is "two million, six hundred thirty thousand, five hundred forty".